Patent US5210442A successfully refreshed from Google Patents.
US5210442A
Expired / Lapsed
US
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Portable type memory device
Assignee: Renesas Electronics Corp
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Filing: 1991-10-18
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Granted: 1993-05-11
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Expires: 2011-10-18
Abstract
Abstract A portable memory device has a lead of a ground terminal of a connector extending and bent to contact a conductive cover. When static electricity is applied to the memory device, it is conducted to the ground terminal and, thus, electric current caused by a static discharge is not supplied to parts within the device so that latch up of IC and loss or discharge of stored data is prevented.
Inventors
- 👤 Shin-ichi Ishimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:21
CPC Classifications
H; H05; H05K; H05K5/00; H05K5/02; H05K5/0256; H05K5/026; G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/0772; G06K19/07735; H05K9/00; H05K9/0067; Y; Y10; Y10S; Y10S439/00; Y10S439/946
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
138 words
A portable memory device comprising: a substrate having opposed faces and opposed first and second sides and an electrically conductive ground line; an IC mounted on said substrate; a pair of conductive covers, each cover having opposed first and second ends, said covers respectively covering said opposed faces of said substrate; a frame attached to the first end of each of said pair of covers and supporting said pair of covers; and a connector mounted on the second end of each of said pair of covers for engaging a terminal device, said connector having a plurality of leads including a ground terminal lead and at least one other terminal lead connected to said IC, said ground terminal lead being connected to said ground line, bent away from said substrate toward, extending to, and contacting one of said covers.
Claim 2
Dependent Claim
138 words
A portable memory device comprising: a substrate having opposed faces and opposed first and second sides and an electrically conductive ground line; an IC mounted on said substrate; a pair of conductive covers, each cover having opposed first and second ends, said covers respectively covering said opposed faces of said substrate; a frame attached to the first end of each of said pair of covers and supporting said pair of covers; and a connector mounted on the second end of each of said pair of covers for engaging a terminal device, said connector having a plurality of leads including a ground terminal lead and at least one other terminal lead connected to said IC, said ground terminal lead being connected to said ground line, bent away from said substrate toward, extending to, and contacting one of said covers.
Claim 3
Dependent Claim
19 words
A portable memory device as claimed in claim 1 wherein said ground terminal lead contacts both of said covers.
Claim 4
Dependent Claim
16 words
A portable memory device as claimed in claim 1 wherein said IC is an IC memory.
Claim 5
Dependent Claim
25 words
A portable memory device as claimed in claim 5 wherein said IC memory is a volatile memory and including a battery disposed within said memory.
Claim 6
Dependent Claim
25 words
A portable memory device as claimed in claim 5 wherein said IC memory is a non-volatile memory and no battery is disposed within said memory.
References Cited (Backward Citations)
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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) | 1996-05-10 | 1996-11-09 | 1997-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-10 | 2000-11-09 | 2001-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-10 | 2004-11-09 | 2005-05-11 | $7700.00 | Window Closed / Lapsed |