Inventor · disambiguated record
Hirofumi Koga
Also filed as: KOGA HIROFUMI
20 granted patents·4 pending applications·203 citations·filing 1979–2021
93Inventor score
Files withKONICA MINOLTA INC9OMRON TATEISI ELECTRONICS CO7KONICA MINOLTA BUSINESS TECH4PANASONIC IP MAN CO LTD4
Top patents by PatentIndex Score
24 records- 0190US4772809ASwitching circuit and a relay device employed to prevent arcingOMRON TATEISI ELECTRONICS CO·Filed 1984·Granted Sep 20, 1988·45 cites·8 claims
- 0290US4727344AElectromagnetic drive and polarized relayOMRON TATEISI ELECTRONICS CO·Filed 1986·Granted Feb 23, 1988·50 cites·12 claims
- 0386US4855612ASwitching current and a relay device employed thereinOMRON TATEISI ELECTRONICS CO·Filed 1988·Granted Aug 8, 1989·34 cites·8 claims
- 0477US7700253B2Electrophotographic tonerKONICA MINOLTA BUSINESS TECH·Filed 2007·Granted Apr 20, 2010·5 cites·7 claims
- 0573US9811032B2Fixing belt, fixing device, and image forming apparatusKONICA MINOLTA INC·Filed 2016·Granted Nov 7, 2017·1 cites·5 claims
- 0673US4626813AElectromagnetic drive and polarized relayOMRON TATEISI ELECTRONICS CO·Filed 1985·Granted Dec 2, 1986·22 cites·2 claims
- 0765US4814944AMounting structure for surface mounted type component with projection extending down from lower surface thereof and method of mounting a surface mounted type component on a printed circuit boardOMRON TATEISI ELECTRONICS CO·Filed 1988·Granted Mar 21, 1989·24 cites·17 claims
- 0864US7799500B2Image forming methodKONICA MINOLTA BUSINESS TECH·Filed 2006·Granted Sep 21, 2010·2 cites·10 claims
- 0962US7682766B2Electrophotographic image forming method and image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2007·Granted Mar 23, 2010·2 cites·30 claims
- 1061US4831348ALow profile electromagnetic relay to printed circuit boardOMRON TATEISI ELECTRONICS CO·Filed 1988·Granted May 16, 1989·13 cites·3 claims
- 1159US10185260B2Fixing belt, fixing device, and image forming apparatusKONICA MINOLTA INC·Filed 2017·Granted Jan 22, 2019·0 cites·10 claims
- 1257US10289045B2Fixing belt and fixing device and image forming apparatus using the sameKONICA MINOLTA INC·Filed 2017·Granted May 14, 2019·0 cites·8 claims
- 1355US9939764B2Fixing belt, fixing device, and image forming apparatusKONICA MINOLTA INC·Filed 2017·Granted Apr 10, 2018·0 cites·9 claims
- 1452US11246250B2Equipment element maintenance management system and equipment element maintenance management methodPANASONIC IP MAN CO LTD·Filed 2018·Granted Feb 8, 2022·0 cites·10 claims
- 1552US11130862B2Silicone rubber composition, fixing member, manufacturing method of fixing member, and image forming apparatus including fixing memberKONICA MINOLTA INC·Filed 2019·Granted Sep 28, 2021·0 cites·8 claims
- 1652US10031454B2Fixing belt, fixing device, image forming apparatus and image formation methodKONICA MINOLTA INC·Filed 2016·Granted Jul 24, 2018·0 cites·14 claims
- 1750US11550313B2Equipment element maintenance analysis system and equipment element maintenance analysis methodPANASONIC IP MAN CO LTD·Filed 2018·Granted Jan 10, 2023·0 cites·8 claims
- 1850US2019250538A1Silicone rubber composition, fixing member, fixing roller, and manufacturing method of fixing memberKONICA MINOLTA INC·Filed 2019·Application pending·0 cites
- 1949US2018250896A1Manufacturing method and manufacturing apparatus for silicone rubber molded bodyKONICA MINOLTA INC·Filed 2018·Application pending·0 cites
- 2048US2023360005A1Work device analysis system and work device analysis method, and data collection devicePANASONIC IP MAN CO LTD·Filed 2021·Application pending·0 cites
- 2146US10943215B2Equipment element repair management system and equipment element repair management methodPANASONIC IP MAN CO LTD·Filed 2018·Granted Mar 9, 2021·0 cites·13 claims
- 2246US7727697B2Electrophotographic toner and electrophotographic developer by use thereofKONICA MINOLTA BUSINESS TECH·Filed 2007·Granted Jun 1, 2010·0 cites·16 claims
- 2346US4272745AElectromagnetic relayOMRON TATEISI ELECTRONICS CO·Filed 1979·Granted Jun 9, 1981·5 cites·8 claims
- 2446US2020230948A1Multilayer endless belt, inkjet image forming apparatus and electrophotographic image forming apparatus including the same, and method for producing multilayer endless beltKONICA MINOLTA INC·Filed 2019·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →