Inventor · disambiguated record
Katsumi Koyama
Also filed as: KOYAMA KATSUMI
21 granted patents·4 pending applications·316 citations·filing 1979–2017
96Inventor score
Top patents by PatentIndex Score
25 records- 0185US7117895B2Switching valveTGK CO LTD·Filed 2006·Granted Oct 10, 2006·11 cites·2 claims
- 0283USD265832SElectric organNIPPON MUSICAL INSTRUMENTS MFG·Filed 1980·Granted Aug 17, 1982·23 cites·1 claims
- 0382US7028713B2Switching valveTGK CO LTD·Filed 2003·Granted Apr 18, 2006·22 cites·4 claims
- 0477US4831862AMultistep bending machineAMADA CO LTD·Filed 1987·Granted May 23, 1989·38 cites·10 claims
- 0577US4486841ABending pressAMADA CO LTD·Filed 1981·Granted Dec 4, 1984·27 cites·9 claims
- 0673US6390441B2Solenoid operated pilot valveTGK CO LTD·Filed 2001·Granted May 21, 2002·18 cites·12 claims
- 0771US6783110B2Proportional solenoid valveTGK CO LTD·Filed 2002·Granted Aug 31, 2004·18 cites·20 claims
- 0866US5983688AMethod and apparatus for displaying die layout in press brake and for checking interferenceFiled 1997·Granted Nov 16, 1999·44 cites·20 claims
- 0964US7188695B2MotorcycleHONDA MOTOR CO LTD·Filed 2004·Granted Mar 13, 2007·13 cites·3 claims
- 1062US7963354B2Air-inlet structure for motorcycleHONDA MOTOR CO LTD·Filed 2006·Granted Jun 21, 2011·6 cites·20 claims
- 1161US6860294B2Four-way switching valveTGK CO LTD·Filed 2003·Granted Mar 1, 2005·10 cites·8 claims
- 1261US4282738AMethod and apparatus for adjusting stroke length of a ram for pressesAMADA CO LTD·Filed 1979·Granted Aug 11, 1981·13 cites·2 claims
- 1354US6532764B1Degree of supercooling control type expansion valveTGK CO LTD·Filed 1999·Granted Mar 18, 2003·19 cites·9 claims
- 1453US5439385AConnector for circuit boardYAZAKI CORP·Filed 1994·Granted Aug 8, 1995·17 cites·2 claims
- 1551US7117889B2Three-way valveTGK CO LTD·Filed 2004·Granted Oct 10, 2006·5 cites·3 claims
- 1651US6823897B2Four-way switching valveTGK CO LTD·Filed 2002·Granted Nov 30, 2004·6 cites·8 claims
- 1749US2006086918A1Control valve for variable displacement compressorTGK CO LTD·Filed 2005·Application pending·0 cites
- 1848US2006083625A1Control valve for variable displacement compressorTGK CO LTD·Filed 2005·Application pending·0 cites
- 1946US6810911B2Four-way switching valveTGK CO INC·Filed 2003·Granted Nov 2, 2004·5 cites·18 claims
- 2046US6152178AFour-way directional control valveTGK CO LTD·Filed 1999·Granted Nov 28, 2000·13 cites·11 claims
- 2144US7069949B2Four-way switching valveTGK CO LTD·Filed 2004·Granted Jul 4, 2006·2 cites·5 claims
- 2240US6883545B2Three-way switching valveTGK CO LTD·Filed 2003·Granted Apr 26, 2005·0 cites·14 claims
- 2338US2005050916A1Expansion deviceTGK CO LTD·Filed 2004·Application pending·0 cites
- 2433US4803372ALine position detecting apparatus for detecting a V-shaped indentAMADA CO LTD·Filed 1987·Granted Feb 7, 1989·6 cites·10 claims
- 2532US2018086205A1Start control device for saddled vehicleHONDA MOTOR CO LTD·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →