Inventor · disambiguated record
Hiroaki Koyama
Also filed as: KOYAMA HIROAKI
35 granted patents·2 pending applications·467 citations·filing 1972–2022
97Inventor score
Top patents by PatentIndex Score
37 records- 0194US5871296AClicking-type writing implementMITSUBISHI PENCIL CO·Filed 1996·Granted Feb 16, 1999·53 cites·9 claims
- 0294US4021410AMelt-spun drawn or undrawn flame-resistant and antifusing cured epoxy-modified novolak filaments and process for production thereofNIPPON KYNOL INC·Filed 1975·Granted May 3, 1977·47 cites·8 claims
- 0392US4466932AProcess for producing carbon articlesKANEBO LTD·Filed 1982·Granted Aug 21, 1984·62 cites·27 claims
- 0488US8022437B2Organic electroluminescence element and method for manufacturing thereofTOPPAN PRINTING CO LTD·Filed 2009·Granted Sep 20, 2011·10 cites·10 claims
- 0586US4476277AResin composition containing granular or powdery phenol-aldehyde resinKANEBO LTD·Filed 1982·Granted Oct 9, 1984·27 cites·19 claims
- 0682US8282303B2Liquid applicatorUMENO TAKASHI·Filed 2007·Granted Oct 9, 2012·10 cites·2 claims
- 0781US8963147B2Thin film transistor, method of manufacturing the same, and image display device equipped with thin film transistorIMAMURA CHIHIRO·Filed 2011·Granted Feb 24, 2015·15 cites·12 claims
- 0881US3931386AProcess for producing drawn or undrawn flame-resistant, anti-fusing cured phenolic continuous filamentsNIPPON KYNOL INC·Filed 1972·Granted Jan 6, 1976·20 cites·13 claims
- 0979US4596845AResin composition containing granular or powdery phenol-aldehyde resinKANEBO LTD·Filed 1985·Granted Jun 24, 1986·17 cites·15 claims
- 1076US11001224B2Gas generatorNIPPON KAYAKU KK·Filed 2018·Granted May 11, 2021·3 cites·7 claims
- 1175US4598110AResin composition containing granular or powdery phenol-aldehyde resinKANEBO LTD·Filed 1984·Granted Jul 1, 1986·16 cites·19 claims
- 1274US9339452B2High internal water phase water-in-oil emulsified cosmetic and cosmetic liquid applicatorMITSUBISHI PENCIL CO·Filed 2013·Granted May 17, 2016·1 cites·9 claims
- 1374US6435747B2Double ended direct-feed type writing implementMITSUBISHI PENCIL CO·Filed 2001·Granted Aug 20, 2002·14 cites·16 claims
- 1474US4558089AResin composition containing granular or powdery phenol-aldehyde resinKANEBO LTD·Filed 1984·Granted Dec 10, 1985·17 cites·24 claims
- 1573US4454298AGranular or powdery phenol-aldehyde resin and process for production thereofKANEBO LTD·Filed 1982·Granted Jun 12, 1984·21 cites·35 claims
- 1672US10676061B2Gas generatorNIPPON KAYAKU KK·Filed 2017·Granted Jun 9, 2020·3 cites·10 claims
- 1771US8777506B2Liquid applicatorAKAISHI TETSUAKI·Filed 2006·Granted Jul 15, 2014·5 cites·28 claims
- 1871US4460730AComposition containing a powder of an inorganic materialKANEBO LTD·Filed 1983·Granted Jul 17, 1984·19 cites·16 claims
- 1970US5918993AClicking-type writing implementMITSUBISHI PENCIL CO·Filed 1996·Granted Jul 6, 1999·22 cites·2 claims
- 2067US12176547B2Catalyst layer for polymer electrolyte fuel cells, membrane-electrode assembly, and polymer electrolyte fuel cellTOPPAN PRINTING CO LTD·Filed 2021·Granted Dec 24, 2024·0 cites·11 claims
- 2166US4414379AGranular or powdery nitrogen-containing phenol-aldehyde copolymer resin and process for production thereofKANEBO LTD·Filed 1982·Granted Nov 8, 1983·18 cites·69 claims
- 2265US11110885B2Gas generatorNIPPON KAYAKU KK·Filed 2018·Granted Sep 7, 2021·2 cites·8 claims
- 2364US11667261B2Gas generatorNIPPON KAYAKU KK·Filed 2021·Granted Jun 6, 2023·0 cites·7 claims
- 2460US4414378AGranular or powdery phenol-formaldehyde resin and process for production thereofMITSUBISHI CHEM IND·Filed 1982·Granted Nov 8, 1983·14 cites·56 claims
- 2559US8206051B2Cosmetic-containing applicator and replacement brushSAKURAI KIYOKAZU·Filed 2006·Granted Jun 26, 2012·3 cites·9 claims
- 2659US5915871ABall-point pen capMITSUBISHI PENCIL CO·Filed 1997·Granted Jun 29, 1999·12 cites·1 claims
- 2759US4316969ACured novolak fiber-reinforced, chlorinated rubber molded articles having excellent flame-proofness, and process for the preparation thereofNIPPON KYNOL INC·Filed 1979·Granted Feb 23, 1982·15 cites·15 claims
- 2857US7803198B2Hair dye and applicator for hair using the sameMITSUBISHI PENCIL CO·Filed 2008·Granted Sep 28, 2010·0 cites·9 claims
- 2956US2009162130A1Viscous Cosmetic ItemMIYAZAKI TAKAYUKI·Filed 2007·Application pending·0 cites
- 3055US9375068B2Click-type applicatorKOYAMA HIROAKI·Filed 2011·Granted Jun 28, 2016·1 cites·9 claims
- 3151US4008304AProcess for producing cured phenolic filaments having improved drawabilityNIPPON KYNOL INC·Filed 1975·Granted Feb 15, 1977·6 cites·4 claims
- 3249US2024374200A1Biological information recording device and biological information recording programSUMITOMO PHARMA CO LTD·Filed 2022·Application pending·0 cites
- 3348US3972959AProcess for preparing phenolic filamentsNIPPON KYNOL INC·Filed 1974·Granted Aug 3, 1976·5 cites·13 claims
- 3446US7600556B2Mold for casting and method of surface treatment thereofHONDA MOTOR CO LTD·Filed 2003·Granted Oct 13, 2009·2 cites·15 claims
- 3541US5711626ABall-point pen with back flow stopMITSUBISHI PENCIL CO·Filed 1994·Granted Jan 27, 1998·7 cites·13 claims
- 3633US7497243B2Mold for casting and method for manufacture thereofHONDA MOTOR CO LTD·Filed 2003·Granted Mar 3, 2009·0 cites·6 claims
- 3724US8597086B2Tool holderNORO DAISUKE·Filed 2010·Granted Dec 3, 2013·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →