Ricoh Research Institute of General Electronics Co., Ltd.
Patent Owner
Stats
- 15 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Aug 10, 1999 most recent publication
Details
- 15 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 1,406 Total Citation Count
- May 07, 1986 Earliest Filing
- 37 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
5545925 Semiconductor device having a metallic silicide layer for improved operational ratesJun 23, 94Aug 13, 96[H01L]
5521402 Semiconductor optical functional element of loading resistor integrated typeMar 20, 95May 28, 96[H01L]
5448113 Micro metal-wiring structure having stress induced migration resistanceDec 02, 94Sep 05, 95[H01L]
5408113 High sensitivity improved photoelectric imaging device with a high signal to noise ratioJun 28, 93Apr 18, 95[H01L]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5937327 Method for improving wiring contact in semiconductor devicesExpiredFeb 25, 97Aug 10, 99[H01L]
5155567 Amorphous photoconductive material and photosensor employing the photoconductive materialExpiredDec 28, 90Oct 13, 92[H01L]
5153750 Image reading apparatus having a contact type image sensor deviceExpiredMay 18, 90Oct 06, 92[H04N]
5146082 Image detecting unit having emitting means and light receiving means and method for arranging the light emitting means and the light receiving meansExpiredOct 29, 90Sep 08, 92[H01J]
5124543 Light emitting element, image sensor and light receiving element with linearly varying waveguide indexExpiredAug 08, 90Jun 23, 92[H01J]
5117477 Optical functioning element using a transparent substrate with matching lattice constantExpiredJan 25, 91May 26, 92[H01L, G02B]
5091757 Semiconductor light emitting array with particular surfacesExpiredSep 06, 90Feb 25, 92[H01L]
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