Inventor · disambiguated record
Yasuhiro Hirai
Also filed as: HIRAI YASUHIRO
8 granted patents·143 citations·filing 1993–2017
87Inventor score
Files withMITSUBISHI GAS CHEMICAL CO4HIRAI YASUHIRO1MITSUBISHI ENG PLASTICS CORP1NAGAI MASAYUKI1OSAKA GAS CO LTD1
Top patents by PatentIndex Score
8 records- 0194US6664313B2Polycarbonate resin composition and its molded articlesMITSUBISHI ENG PLASTICS CORP·Filed 2001·Granted Dec 16, 2003·59 cites·14 claims
- 0284US6042798AMethod of desulfurization of hydrocarbonsOSAKA GAS CO LTD·Filed 1997·Granted Mar 28, 2000·57 cites·16 claims
- 0382US8097670B2Polyacetal resin composition, process for producing the same, and sliding member molded from the resin compositionNAGAI MASAYUKI·Filed 2007·Granted Jan 17, 2012·7 cites·4 claims
- 0444US5644018APitch with reduced tendency to smoke during spinning and a process for the production of said pitchMITSUBISHI GAS CHEMICAL CO·Filed 1995·Granted Jul 1, 1997·6 cites·13 claims
- 0543US5321097AHeat-resistant resin compositionMITSUBISHI GAS CHEMICAL CO·Filed 1993·Granted Jun 14, 1994·7 cites·7 claims
- 0634US5944980AMethod for producing isotropic pitch, activated carbon fibers and carbon materials for non-aqueous secondary battery anodesMITSUBISHI GAS CHEMICAL CO·Filed 1997·Granted Aug 31, 1999·2 cites·4 claims
- 0730US6228343B1Method for producing isotropic pitch, activated carbon fibers and carbon materials for non-aqueous secondary battery anodesMITSUBISHI GAS CHEMICAL CO·Filed 1999·Granted May 8, 2001·4 cites·6 claims
- 0827USD853232SCombined container and baseHIRAI YASUHIRO·Filed 2017·Granted Jul 9, 2019·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →