Inventor · disambiguated record
Hisashi Ohwada
Also filed as: OHWADA HISASHI
6 granted patents·2 pending applications·85 citations·filing 1990–2010
81Inventor score
Top patents by PatentIndex Score
8 records- 0178US9291135B2Electromagnetic fuel injection valveOHWADA HISASHI·Filed 2010·Granted Mar 22, 2016·5 cites·10 claims
- 0277US5570442ADesign and manufacture of an optimized waveguide-type multiple branched star couplerMITSUBISHI GAS CHEMICAL CO·Filed 1993·Granted Oct 29, 1996·46 cites·20 claims
- 0361US5091986AOptical divider for multimode optical fiber systemsMITSUBISHI GAS CHEMICAL CO·Filed 1990·Granted Feb 25, 1992·29 cites·6 claims
- 0440US2011073682A1Fuel Injection ValveHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2010·Application pending·0 cites
- 0537US2004229391A1LED lamp manufacturing processFiled 2004·Application pending·0 cites
- 0629US6295150B1Wavelength division multiplexing deviceMITSUBISHI GAS CHEMICAL CO·Filed 1999·Granted Sep 25, 2001·1 cites·6 claims
- 0729US5916402AMethod for manufacturing optical elementMITSUBISHI GAS CHEMICAL CO·Filed 1997·Granted Jun 29, 1999·2 cites·7 claims
- 0827US5923800AOptical waveguide module having main-line waveguide and branch waveguides, and optical transmission device including such optical waveguide moduleMITSUBISHI GAS CHEMICAL CO·Filed 1997·Granted Jul 13, 1999·2 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →