Inventor · disambiguated record
Kenichi Kasahara
Also filed as: KASAHARA KENICHI
17 granted patents·9 pending applications·445 citations·filing 1987–2019
95Inventor score
Files withNEC CORP16KOBAYASHI HIROYUKI6PIONEER TOHOKU CORP2MITSUI CHEMICALS INC1NEC RESEARCH INST INC1
Top patents by PatentIndex Score
26 records- 0188US5434434ASemiconductor optical device having device regions and diffraction gratingsNEC CORP·Filed 1993·Granted Jul 18, 1995·84 cites·29 claims
- 0286US5532856APlanar optical mesh-connected tree interconnect networkNEC RESEARCH INST INC·Filed 1994·Granted Jul 2, 1996·84 cites·20 claims
- 0385US4829357APNPN thyristorNEC CORP·Filed 1987·Granted May 9, 1989·52 cites·10 claims
- 0476US4864168AProcess for controlling an optical pnpn thyristor to be drivenNEC CORP·Filed 1988·Granted Sep 5, 1989·34 cites·2 claims
- 0575US4910571AOptical semiconductor deviceNEC CORP·Filed 1988·Granted Mar 20, 1990·32 cites·3 claims
- 0670US5394423ASurface emitting semiconductor laserNEC CORP·Filed 1994·Granted Feb 28, 1995·26 cites·4 claims
- 0770US5059788AOptical logic device with PNPN detection and laser diode outputNEC CORP·Filed 1990·Granted Oct 22, 1991·24 cites·4 claims
- 0868US5424559ASurface emitting photonic switching structureNEC CORP·Filed 1994·Granted Jun 13, 1995·32 cites·8 claims
- 0953US5028969ASemiconductor device for a space modulation matrix and method for driving a space modulation matrixNEC CORP·Filed 1989·Granted Jul 2, 1991·15 cites·7 claims
- 1052US5136345ASemiconductor layer comprising cyclically stacked narrow, intermediate, and wide band gap semiconductor filmsNEC CORP·Filed 1990·Granted Aug 4, 1992·14 cites·10 claims
- 1148US5340998ASemiconductor surface light emitting and receiving heterojunction deviceNEC CORP·Filed 1992·Granted Aug 23, 1994·12 cites·21 claims
- 1247US5527732AMethod for fabricating semiconductor laser and photo detecting arrays for wavelength division multiplexing optical interconnectionsNEC CORP·Filed 1994·Granted Jun 18, 1996·12 cites·9 claims
- 1344US5093875AOptical interconnection apparatusNEC CORP·Filed 1990·Granted Mar 3, 1992·10 cites·8 claims
- 1444US2006093181A1Diaphragm for speaker device and speaker device including the diaphragmPIONEER TOHOKU CORP·Filed 2005·Application pending·0 cites
- 1543US2008013780A1Speaker deviceKOBAYASHI HIROYUKI·Filed 2005·Application pending·0 cites
- 1643US2005271244A1Resin frame, resin grille and speaker deviceKOBAYASHI HIROYUKI·Filed 2005·Application pending·0 cites
- 1743US2005271238A1Resin frame, speaker unit and speaker deviceKOBAYASHI HIROYUKI·Filed 2005·Application pending·0 cites
- 1843US2005271236A1Coaxial speaker device and manufacturing method thereofKOBAYASHI HIROYUKI·Filed 2005·Application pending·0 cites
- 1943US2005276438A1Speaker device and method of manufacturing the speaker deviceKOBAYASHI HIROYUKI·Filed 2005·Application pending·0 cites
- 2043US2005276436A1Speaker deviceKOBAYASHI HIROYUKI·Filed 2005·Application pending·0 cites
- 2143US2005207608A1Gasket for speakerPIONEER TOHOKU CORP·Filed 2005·Application pending·0 cites
- 2236US2021212801A1Dental coupling member and oral applianceMITSUI CHEMICALS INC·Filed 2019·Application pending·0 cites
- 2334US5084748ASemiconductor optical memory having a low switching voltageNEC CORP·Filed 1991·Granted Jan 28, 1992·4 cites·2 claims
- 2433US5021694ACircuit for driving a gated p-n-p-n deviceNEC CORP·Filed 1988·Granted Jun 4, 1991·5 cites·2 claims
- 2531US5153758ADriving method and apparatus for a pnpn semiconductor deviceNEC CORP·Filed 1991·Granted Oct 6, 1992·3 cites·11 claims
- 2631US5065044AMethod for driving a pnpn semiconductor deviceNEC CORP·Filed 1989·Granted Nov 12, 1991·2 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Kenichi Kasahara files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →