US4665324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Touch control apparatus for electric appliances
Assignee: SHIMOMOTO TECHNICAL ENGINEERING Co Ltd
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Filing: 1984-11-27
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Granted: 1987-05-12
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Expires: 2004-11-27
Abstract
Abstract A touch control apparatus for an electric appliance has a plurality of conductive electrodes formed on a glass plate by heating a layer formed of a mixture of conductive powder and glass powder on a surface of the glass plate, the glass plate being used as a glass plate of an operation input section of the electric appliance. The heating produces an integral bonding of the layer and glass plate so that the control apparatus has a high mechanical strength and a long life and provides an electric appliance with a water-tight structure.
Inventors
- 👤 Yoshio Ogino
- 👤 Takeshi Shimomoto
- 👤 Osamu Hiraoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:56
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C8/00; C03C8/14; F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/106; H; H03; H03K; H03K17/00; H03K17/94; H03K17/96; H03K17/962; H03K17/9622; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/23; C03C2217/29; C03C2218/00; C03C2218/10; C03C2218/17; H03K2017/9602; H03K2017/9604; H03K2017/9615; H03K2217/00; H03K2217/94; H03K2217/96; H03K2217/9607; H03K2217/960755; H03K2217/96077; H03K2217/960775
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
83 words
A touch control apparatus for an electric appliance comprising a glass plate and at least one first conductive electrode integrally formed thereon, each said at least one first electrode being a mixture of conductive metal oxide powder and glass powder, which is formed as a layer on said glass plate and which has been heated to produce an integral bonding of said conductive metal oxide powder and glass powder within said layer and an integral bonding of said layer to said glass plate.
Claim 2
Dependent Claim
83 words
A touch control apparatus for an electric appliance comprising a glass plate and at least one first conductive electrode integrally formed thereon, each said at least one first electrode being a mixture of conductive metal oxide powder and glass powder, which is formed as a layer on said glass plate and which has been heated to produce an integral bonding of said conductive metal oxide powder and glass powder within said layer and an integral bonding of said layer to said glass plate.
Claim 3
Dependent Claim
16 words
A control apparatus according to claim 1, wherein said conductive metal oxide is a ruthenium oxide.
Claim 4
Dependent Claim
16 words
A control apparaus according to claim 1, wherein said glass plate is made of reinforced glass.
Claim 5
Dependent Claim
86 words
A conrol apparatus according to claim 1, further comprising at least one second electrode formed on a back surface of said glass plate opposite to a respective conductive electrode, at least one third electrode formed on a back surface of said glass plate opposite to a respective conductive electrode, driving circuit means for supplying a square-wave drive signal to each said at least one second electrode, and detecting circuit means for detecting the magnitude of differentiation output signals from each said at least one third electrode.
Claim 6
Dependent Claim
30 words
A control apparatus according to claim 4, further comprising emans for setting an operating condition of said electric appliance in response to an output signal from said detecting circuit means.
References Cited (Backward Citations)
US3279947A
Cited
US3234442A
Cited
US3293077A
Cited
US3368919A
Cited
US3495996A
Cited
US3586522A
Cited
US3582729A
Cited
US3720862A
Cited
US3900773A
Cited
US3939319A
Cited
US3902102A
Cited
US4090092A
Cited
US4149217A
Cited
US4322631A
Cited
US4308443A
Cited
US4380040A
Cited
US4446350A
Cited
US4529768A
Cited
US4551601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-11 | 1990-11-10 | 1991-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-11 | 1994-11-10 | 1995-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-11 | 1998-11-10 | 1999-05-12 | $7700.00 | Window Closed / Lapsed |