Inventor · disambiguated record
Keiji Hirabayashi
Also filed as: HIRABAYASHI KEIJI
27 granted patents·2 pending applications·1,199 citations·filing 1987–2025
97Inventor score
Top patents by PatentIndex Score
29 records- 0198US5632812ADiamond electronic device and process for producing the sameCANON KK·Filed 1995·Granted May 27, 1997·304 cites·7 claims
- 0296US4935303ANovel diamond-like carbon film and process for the production thereofCANON KK·Filed 1988·Granted Jun 19, 1990·98 cites·4 claims
- 0395US5202571AElectron emitting device with diamondCANON KK·Filed 1991·Granted Apr 13, 1993·99 cites·31 claims
- 0494US5202156AMethod of making an optical element mold with a hard carbon filmCANON KK·Filed 1991·Granted Apr 13, 1993·79 cites·1 claims
- 0594US5026415AMold with hydrogenated amorphous carbon film for molding an optical elementCANON KK·Filed 1989·Granted Jun 25, 1991·74 cites·6 claims
- 0693US11842918B2Wafer chuck, method for producing the same, and exposure apparatusCANON KK·Filed 2020·Granted Dec 12, 2023·2 cites·11 claims
- 0793US5380349AMold having a diamond layer, for molding optical elementsCANON KK·Filed 1994·Granted Jan 10, 1995·106 cites·2 claims
- 0891US5210430AElectric field light-emitting deviceCANON KK·Filed 1989·Granted May 11, 1993·57 cites·52 claims
- 0990US4898798APhotosensitive member having a light receiving layer comprising a carbonic film for use in electrophotographyCANON KK·Filed 1987·Granted Feb 6, 1990·36 cites·19 claims
- 1087US2025349593A1Wafer chuck, method for producing the same, and exposure apparatusCANON KK·Filed 2025·Application pending·0 cites
- 1184US12400906B2Wafer chuck, method for producing the same, and exposure apparatusCANON KK·Filed 2023·Granted Aug 26, 2025·0 cites·16 claims
- 1284US4897829ACardlike optical recording mediumCANON KK·Filed 1987·Granted Jan 30, 1990·29 cites·7 claims
- 1383US5607560ADiamond crystal forming methodCANON KK·Filed 1995·Granted Mar 4, 1997·58 cites·7 claims
- 1481US5275967AElectric field light-emitting deviceCANON KK·Filed 1992·Granted Jan 4, 1994·37 cites·33 claims
- 1581US4932331ANovel single-bond carbon film and process for the production thereofCANON KK·Filed 1988·Granted Jun 12, 1990·40 cites·11 claims
- 1679US5541423AMonocrystalline diamond semiconductor device and several electronic components employing sameCANON KK·Filed 1994·Granted Jul 30, 1996·61 cites·12 claims
- 1777US5676723AMold for forming an optical elementCANON KK·Filed 1997·Granted Oct 14, 1997·33 cites·7 claims
- 1864US5720808AMethod for forming diamond filmCANON KK·Filed 1995·Granted Feb 24, 1998·25 cites·7 claims
- 1963US5382274AMold with film of 0-5 atom % hydrogen and molding method utilizing sameCANON KK·Filed 1992·Granted Jan 17, 1995·18 cites·2 claims
- 2058US12411426B2Substrate holding board, manufacturing method of device, and exposure deviceCANON KK·Filed 2022·Granted Sep 9, 2025·0 cites·20 claims
- 2155US5483084ADiamond covered member and process for producing the sameCANON KK·Filed 1994·Granted Jan 9, 1996·13 cites·8 claims
- 2254US4892800APhotosensitive member having a photoconductive layer comprising a carbonic film for use in electrophotographyCANON KK·Filed 1987·Granted Jan 9, 1990·9 cites·8 claims
- 2353US9481595B2Method of producing optical element forming mold and optical element forming moldKUBO HIROYUKI·Filed 2011·Granted Nov 1, 2016·0 cites·7 claims
- 2449US5807432AProcess for producing diamond covered memberCANON KK·Filed 1995·Granted Sep 15, 1998·11 cites·6 claims
- 2548US9480695B2Methods for inducing orexin neurons and agent for treating narcolepsy or eating disorderUNIV TOKYO·Filed 2014·Granted Nov 1, 2016·0 cites·9 claims
- 2648US5445851AMethod for forming tabular diamond crystalsCANON KK·Filed 1994·Granted Aug 29, 1995·6 cites·6 claims
- 2741US2009221066A1Anti-Methylated Dna Antibody and Method for Production ThereofSHIOTA KUNIO·Filed 2007·Application pending·0 cites
- 2833US6184059B1Process of making diamond-metal ohmic junction semiconductor deviceCANON KK·Filed 1995·Granted Feb 6, 2001·2 cites·4 claims
- 2932US5576107ADiamond crystal and method for forming the sameCANON KK·Filed 1995·Granted Nov 19, 1996·2 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Keiji Hirabayashi 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 →