Inventor · disambiguated record
Hitoshi Umezawa
Also filed as: UMEZAWA HITOSHI
11 granted patents·6 pending applications·96 citations·filing 1999–2022
88Inventor score
Top patents by PatentIndex Score
17 records- 0191US7325780B2Motor operated valve with reduction gearFUJIKOKI CORP·Filed 2005·Granted Feb 5, 2008·31 cites·6 claims
- 0290US7758013B2Motor-operated valveFUJIKOKI CORP·Filed 2007·Granted Jul 20, 2010·20 cites·6 claims
- 0387US7165755B2Motor-operated valveFUJIKOKI CORP·Filed 2005·Granted Jan 23, 2007·14 cites·4 claims
- 0482US8397757B2Multi-way selector valveKANNOO TAKESHI·Filed 2009·Granted Mar 19, 2013·13 cites·2 claims
- 0574US7494108B2Motor-operated valveFUJIKOKI CORP·Filed 2006·Granted Feb 24, 2009·7 cites·7 claims
- 0661US8237170B2Schottky diamond semiconductor device and manufacturing method for a Schottky electrode for diamond semiconductor deviceIKEDA KAZUHIRO·Filed 2008·Granted Aug 7, 2012·2 cites·14 claims
- 0751US2016290525A1Electric expansion valveDENSO CORP·Filed 2014·Application pending·0 cites
- 0850US12027440B2Composite having diamond crystal baseAIST·Filed 2020·Granted Jul 2, 2024·0 cites·9 claims
- 0950US7989260B2Method of selectively forming atomically flat plane on diamond surface, diamond substrate produced by the method, and semiconductor device using the sameNAT INST OF ADVANCED IND SCIEN·Filed 2007·Granted Aug 2, 2011·0 cites·4 claims
- 1047US2024088058A1Field effect transistorUNIV HOKKAIDO NAT UNIV CORP·Filed 2021·Application pending·0 cites
- 1146US2024149565A1Composite body comprising silicon carbide and method for producing sameAIST·Filed 2022·Application pending·0 cites
- 1245US11522055B2Stack comprising single-crystal diamond substrateAIST·Filed 2019·Granted Dec 6, 2022·0 cites·6 claims
- 1345US2009050899A1High-output diamond semiconductor elementNAT INST OF ADVANCED IND SCINE·Filed 2008·Application pending·0 cites
- 1444US2009140263A1Method for diamond surface treatment and device using diamond thin filmUMEZAWA HITOSHI·Filed 2007·Application pending·0 cites
- 1541US2023170276A1Diamond composite and method of manufacturing the sameNATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCINCE AND TECH·Filed 2021·Application pending·0 cites
- 1639US7976893B2Superconductivity in boron-doped diamond thin filmNAT INST FOR MATERIALS SCIENCE·Filed 2005·Granted Jul 12, 2011·0 cites·10 claims
- 1735US6254059B1Electrically operated flow control valveFUJIKOKI CORP·Filed 1999·Granted Jul 3, 2001·9 cites·6 claims
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