Inventor · disambiguated record
Hiroyuki Koizumi
Also filed as: KOIZUMI HIROYUKI
15 granted patents·1 pending application·395 citations·filing 1988–2023
93Inventor score
Top patents by PatentIndex Score
16 records- 0194US5593223AIllumination deviceALPINE ELECTRONICS INC·Filed 1995·Granted Jan 14, 1997·128 cites·7 claims
- 0293US6587602B2Resolution conversion system and methodHITACHI LTD·Filed 2002·Granted Jul 1, 2003·64 cites·22 claims
- 0388US6389180B1Resolution conversion system and methodHITACHI LTD·Filed 2000·Granted May 14, 2002·29 cites·15 claims
- 0487US6002810AResolution conversion system and methodHITACHI LTD·Filed 1996·Granted Dec 14, 1999·68 cites·14 claims
- 0566US9421936B2Case member of airbag device, airbag device, method of manufacturing airbag device, and apparatus for manufacturing airbag deviceNIHON PLAST CO LTD·Filed 2014·Granted Aug 23, 2016·4 cites·11 claims
- 0666US5967996AApparatus and method for aiding transmissionCANON KK·Filed 1997·Granted Oct 19, 1999·49 cites·13 claims
- 0766USD320077SOphthalmometer or similar articleCANON KK·Filed 1988·Granted Sep 17, 1991·11 cites·1 claims
- 0862US6151425AResolution conversion system and methodHITACHI LTD·Filed 1999·Granted Nov 21, 2000·19 cites·6 claims
- 0957USD408916SX-ray digital cameraCANON KK·Filed 1998·Granted Apr 27, 1999·9 cites·1 claims
- 1053US12473875B2Rocket engineUNIV TOKYO·Filed 2023·Granted Nov 18, 2025·0 cites·8 claims
- 1153US2011033365A1Process and apparatus for producing carbonaceous filmUNIV NAGOYA NAT UNIV CORP·Filed 2007·Application pending·0 cites
- 1252USD333144SChamber for semiconductor fabricating machineCANON KK·Filed 1991·Granted Feb 9, 1993·7 cites·1 claims
- 1348US4920372ACameraSEIKOSHA KK·Filed 1989·Granted Apr 24, 1990·5 cites·21 claims
- 1445US12489184B2DC block and plasma generator using the samePALE BLUE INC·Filed 2021·Granted Dec 2, 2025·0 cites·14 claims
- 1531USD418129SImage display deviceCANON KK·Filed 1998·Granted Dec 28, 1999·1 cites·1 claims
- 1630US5175577ADrive member sensing arrangement for an automatic focusing system of a cameraSEIKOSHA KK·Filed 1991·Granted Dec 29, 1992·1 cites·5 claims
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