US5208604A
Expired / Lapsed
US
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Ink jet head and manufacturing method thereof, and ink jet apparatus with ink jet head
Assignee: Canon Inc
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Filing: 1991-08-26
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Granted: 1993-05-04
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Expires: 2011-08-26
Abstract
Abstract The present invention relates to a method for manufacturing an ink jet recording head having an ink path communicated with a discharge opening, a discharge energy generating element disposed in the ink path and a discharge opening plate on which the discharge opening is formed. The discharge opening plate is attached to an end surface of the ink path. The discharge opening is formed by irradiating an excimer laser light on the discharge opening plate from a side of the plate which is attached to the ink path.
Inventors
- 👤 Takashi Watanabe
- 👤 Kazuaki Masuda
- 👤 Akira Goto
- 👤 Hiroshi Kono
- 👤 Takashi Kanzaki
- 👤 Toshio Kashino
- 👤 Akio Saito
- 👤 Koyo Midorikawa
- 👤 Toru Okumura
- 👤 Masami Ikeda
- 👤 Nobuyuki Kuwabara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:07
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/16; B41J2/1621; B41J2/1623; B41J2/14; B41J2/14016; B41J2/14024; B41J2/1433; B41J2/1601; B41J2/1604; B41J2/1606; B41J2/1631; B41J2/1632; B41J2/1634; B41J2/1637; B41J2/164; B41J2/1642; B41J2/1645; B41J2/1646
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
210 words
A method of manufacturing an ink jet heat having a first base plate provided with energy generating means for generating energy used for discharging ink, a second base plate provided with a recessed portion for forming a portion of an ink path, and a discharge opening member provided with ink discharge openings communicated with the ink path, wherein the ink path is formed by connecting the first and second base plates and the discharge openings and the ink path are communicated with each other by connecting the discharge opening member to the first base plate, said method comprising the steps of: integrally forming the second base plate and a plate member, the plate member to be formed into the discharge opening member; and forming the discharge openings on the discharge opening member by irradiating a laser beam onto portions of the plate member to be formed into the discharge opening member from a side of the plate member where the ink path is formed and in a direction in which the ink is discharged; and connecting the first base plate and the second base plate such that the energy generating means and the recessed portion are opposed and the discharge opening member and the first base plate abut one another.
Claim 2
Independent Claim
210 words
A method of manufacturing an ink jet heat having a first base plate provided with energy generating means for generating energy used for discharging ink, a second base plate provided with a recessed portion for forming a portion of an ink path, and a discharge opening member provided with ink discharge openings communicated with the ink path, wherein the ink path is formed by connecting the first and second base plates and the discharge openings and the ink path are communicated with each other by connecting the discharge opening member to the first base plate, said method comprising the steps of: integrally forming the second base plate and a plate member, the plate member to be formed into the discharge opening member; and forming the discharge openings on the discharge opening member by irradiating a laser beam onto portions of the plate member to be formed into the discharge opening member from a side of the plate member where the ink path is formed and in a direction in which the ink is discharged; and connecting the first base plate and the second base plate such that the energy generating means and the recessed portion are opposed and the discharge opening member and the first base plate abut one another.
Claim 3
Dependent Claim
14 words
The method of claim 1, wherein the laser beam comprises an excimer laser beam.
Claim 4
Dependent Claim
21 words
The method of claim 1, wherein the integrally formed second base plate and plate member are formed by molding a resin.
Claim 5
Dependent Claim
19 words
The method of claim 1, wherein the energy generating means comprises an electro-thermal converting member for generating thermal energy.
Claim 6
Dependent Claim
28 words
The method of claim 1, wherein the laser beam is irradiated in an obliquely downward direction from a side of the plate member adjacent the second base plate.
Claim 7
Dependent Claim
34 words
The method of claim 1, further including the step of thinning an area of the plate member including portions to be formed into the discharge openings, prior to the step of forming discharge openings.
Claim 8
Dependent Claim
184 words
An ink jet head comprising: a first base plate provided with energy generating means for generating energy used for discharging ink; a second base plate provided with a recessed portion for forming a portion of an ink path; and a discharge opening member provided with discharge openings communicated with said ink path; wherein said ink path is formed by connecting said first base plate and said second base plate so that said energy generating means and said recessed portion are opposed to each other, said discharge openings and said ink path are communicated by integrally forming said discharge opening member with said second base plate, said discharge opening member and said first base plate abut one another, and the discharge openings are formed on the discharge opening member by irradiating a laser beam onto portions of the discharge opening member to be formed into the discharge openings, the laser beam being irradiated from a side where the ink path is formed and in a discharge direction in which ink is discharged such that cross sections of said discharge openings decrease in the discharge direction.
Claim 9
Dependent Claim
184 words
An ink jet head comprising: a first base plate provided with energy generating means for generating energy used for discharging ink; a second base plate provided with a recessed portion for forming a portion of an ink path; and a discharge opening member provided with discharge openings communicated with said ink path; wherein said ink path is formed by connecting said first base plate and said second base plate so that said energy generating means and said recessed portion are opposed to each other, said discharge openings and said ink path are communicated by integrally forming said discharge opening member with said second base plate, said discharge opening member and said first base plate abut one another, and the discharge openings are formed on the discharge opening member by irradiating a laser beam onto portions of the discharge opening member to be formed into the discharge openings, the laser beam being irradiated from a side where the ink path is formed and in a discharge direction in which ink is discharged such that cross sections of said discharge openings decrease in the discharge direction.
Claim 10
Dependent Claim
23 words
The ink jet head of claim 7, wherein said second base plate said discharge opening member are formed integrally by molding a resin.
Claim 11
Dependent Claim
21 words
The ink jet head of claim 7, wherein said energy generating means comprises an electro-thermal converting member for generating thermal energy.
Claim 12
Dependent Claim
25 words
The ink jet head of claim 7, wherein said discharge openings are so formed that the ink is discharged obliquely upward from said discharge openings.
Claim 13
Dependent Claim
33 words
The ink jet head of claim 7, wherein an area of said discharge opening member including portions where said discharge openings are disposed is thinner than remaining portions of said discharge opening member.
Claim 14
Dependent Claim
212 words
An ink jet apparatus comprising: an ink jet head including: a first base plate provided with energy generating means for generating energy used for discharging ink, a second base plate provided with a recessed portion for forming a portion of an ink path, and a discharge opening member provided with discharge openings communicated with said ink path, wherein said ink path is formed by connecting said first base plate and said second base plate so that said energy generating means and said recessed portion are opposed to each other, said discharge openings and said ink path are communicated by integrally forming said discharge opening member with said second base plate, said discharge opening member and said first base plate abut one another, and the discharge openings are formed on the discharge opening member by irradiating a laser beam onto portions of the discharge opening member to be formed into the discharge openings, the laser beam being irradiated from a side where the ink path is formed and in a discharge direction in which ink is discharged such that cross sections of said discharge openings decrease in the discharge direction; and convey means for conveying a recording medium to be recorded by ink discharged from said discharge openings of said ink jet head.
Claim 15
Dependent Claim
212 words
An ink jet apparatus comprising: an ink jet head including: a first base plate provided with energy generating means for generating energy used for discharging ink, a second base plate provided with a recessed portion for forming a portion of an ink path, and a discharge opening member provided with discharge openings communicated with said ink path, wherein said ink path is formed by connecting said first base plate and said second base plate so that said energy generating means and said recessed portion are opposed to each other, said discharge openings and said ink path are communicated by integrally forming said discharge opening member with said second base plate, said discharge opening member and said first base plate abut one another, and the discharge openings are formed on the discharge opening member by irradiating a laser beam onto portions of the discharge opening member to be formed into the discharge openings, the laser beam being irradiated from a side where the ink path is formed and in a discharge direction in which ink is discharged such that cross sections of said discharge openings decrease in the discharge direction; and convey means for conveying a recording medium to be recorded by ink discharged from said discharge openings of said ink jet head.
Claim 16
Dependent Claim
207 words
An ink jet head cartridge comprising: an ink jet head including: a first base plate provided with energy generating means for generating energy used for discharging ink, a second base plate provided with a recessed portion for forming a portion of an ink path, and a discharge opening member provided with discharge openings communicated with said ink path, wherein said ink path is formed by connecting said first base plate and said second base plate so that said energy generating means and said recessed portion are opposed to each other, said discharge openings and said ink path are communicated by integrally forming said discharge opening member with said second base plate, said discharge opening member and said first base plate abut one another, and the discharge openings are formed on the discharge opening member by irradiating a laser beam onto portions of the discharge opening member to be formed into the discharge openings, the laser beam being irradiated from a side where the ink path is formed and irradiated in a discharge direction in which ink is discharged such that cross sections of said discharge openings decrease in the discharge direction; and an ink tank for supplying ink to said ink path of said ink jet head.
Claim 17
Dependent Claim
207 words
An ink jet head cartridge comprising: an ink jet head including: a first base plate provided with energy generating means for generating energy used for discharging ink, a second base plate provided with a recessed portion for forming a portion of an ink path, and a discharge opening member provided with discharge openings communicated with said ink path, wherein said ink path is formed by connecting said first base plate and said second base plate so that said energy generating means and said recessed portion are opposed to each other, said discharge openings and said ink path are communicated by integrally forming said discharge opening member with said second base plate, said discharge opening member and said first base plate abut one another, and the discharge openings are formed on the discharge opening member by irradiating a laser beam onto portions of the discharge opening member to be formed into the discharge openings, the laser beam being irradiated from a side where the ink path is formed and irradiated in a discharge direction in which ink is discharged such that cross sections of said discharge openings decrease in the discharge direction; and an ink tank for supplying ink to said ink path of said ink jet head.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |