Inventor · disambiguated record
Tsutomu Okusawa
Also filed as: OKUSAWA TSUTOMU
12 granted patents·4 pending applications·229 citations·filing 1988–2011
92Inventor score
Top patents by PatentIndex Score
16 records- 0183US6688106B2Waste processing system and fuel reformer used in the waste processing systemHITACHI LTD·Filed 2001·Granted Feb 10, 2004·22 cites·5 claims
- 0282US5101848AShut off apparatus for a fluid passage, method for controlling the same, and method for confirming closing of the sameHITACHI LTD·Filed 1991·Granted Apr 7, 1992·51 cites·11 claims
- 0382US4822250AApparatus for transferring small amount of fluidHITACHI LTD·Filed 1988·Granted Apr 18, 1989·41 cites·7 claims
- 0478US8277996B2Fuel cellOKUSAWA TSUTOMU·Filed 2007·Granted Oct 2, 2012·7 cites·14 claims
- 0574US7091625B2Home-use fuel cell systemHITACHI LTD·Filed 2004·Granted Aug 15, 2006·38 cites·4 claims
- 0673US5238547AGas-liquid separation device for electroconductive gas-liquid two phase flowHITACHI LTD·Filed 1989·Granted Aug 24, 1993·34 cites·2 claims
- 0769US8349505B2Power generation system of fuel cell and control method thereofHITACHI LTD·Filed 2005·Granted Jan 8, 2013·2 cites·9 claims
- 0868US8137856B2Fuel cellYAMAGA KENJI·Filed 2009·Granted Mar 20, 2012·2 cites·17 claims
- 0953US2008248346A1Start up method for fuel cell and fuel cell power generation systemHITACHI LTD·Filed 2008·Application pending·0 cites
- 1047US6058856AWaste processing system and fuel reformer used in the waste processing systemHITACHI LTD·Filed 1998·Granted May 9, 2000·12 cites·5 claims
- 1147US6014863AWaste processing system and fuel reformer used in the waste processing systemHITACHI LTD·Filed 1997·Granted Jan 18, 2000·12 cites·14 claims
- 1244US6442938B2Waste processing system and fuel reformer used in the waste processing systemHITACHI LTD·Filed 2001·Granted Sep 3, 2002·1 cites·5 claims
- 1343US6282902B1Waste processing system and fuel reformer used in the waste processing systemHITACHI LTD·Filed 1999·Granted Sep 4, 2001·7 cites·6 claims
- 1441US2011076590A1Bipolar plate for fuel cell and fuel cellHITACHI LTD·Filed 2010·Application pending·0 cites
- 1539US2012082915A1Polymer Electrolyte Membrane Fuel CellKOZAKAI MASAYA·Filed 2011·Application pending·0 cites
- 1638US2011229787A1Proton exchange membrane fuel cell stackKOZAKAI MASAYA·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →