Inventor · disambiguated record
Takeo Koyama
Also filed as: KOYAMA TAKEO
12 granted patents·180 citations·filing 1986–2011
91Inventor score
Files withDAIICHI SEIYAKU CO3TOA NENRYO KOGYO KK3MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2ARUZE CORP1DAIICHI SANKYO CO LTD1
Top patents by PatentIndex Score
12 records- 0191US8357808B2Process for producing diamine derivativeDAIICHI SANKYO CO LTD·Filed 2011·Granted Jan 22, 2013·9 cites·18 claims
- 0281US4691070ACatalyst, its method of preparation and process for its use in the hydrogenation of diolefinsTOA NENRYO KOGYO KK·Filed 1986·Granted Sep 1, 1987·21 cites·6 claims
- 0380US5331354APower supply apparatus for television receiver set and television receiver set including the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Jul 19, 1994·55 cites·21 claims
- 0471US5581453APower supply with switched starting circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Dec 3, 1996·50 cites·2 claims
- 0566US8404847B2Method for producing diamine derivativeKOYAMA TAKEO·Filed 2011·Granted Mar 26, 2013·2 cites·12 claims
- 0657US6337405B1Process for preparing 2-phenyl-3-naphthylpropionic acid derivativesDAIICHI SEIYAKU CO·Filed 2000·Granted Jan 8, 2002·1 cites·20 claims
- 0756US5236264ALinear bearingNSK LTD·Filed 1992·Granted Aug 17, 1993·19 cites·8 claims
- 0846US6515142B2Process for preparing 2-phenyl-3-naphthylpropionic acid derivativesDAIICHI SEIYAKU CO·Filed 2001·Granted Feb 4, 2003·0 cites·16 claims
- 0945US4725420AProcess for the production of silanesTOA NENRYO KOGYO KK·Filed 1986·Granted Feb 16, 1988·7 cites·7 claims
- 1039US6252088B1Process for preparing 2-phenyl-3-naphthylpropionic acid derivativesDAIICHI SEIYAKU CO·Filed 1997·Granted Jun 26, 2001·1 cites·12 claims
- 1139US4775651AProcess for the production of silanesTOA NENRYO KOGYO KK·Filed 1987·Granted Oct 4, 1988·5 cites·9 claims
- 1232US6325720B1Game machineARUZE CORP·Filed 1998·Granted Dec 4, 2001·10 cites·13 claims
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