Inventor · disambiguated record
Hiroyuki Sumitomo
Also filed as: DOI MASAFUMI · SUMITOMO HIROYUKI · YOSHIDA KEIDO
24 granted patents·2 pending applications·403 citations·filing 1976–2008
96Inventor score
Top patents by PatentIndex Score
26 records- 0188US4753079AEvaporating apparatusHISAKA WORKS LTD·Filed 1987·Granted Jun 28, 1988·52 cites·1 claims
- 0287US4182411APlate type condenserHISAKA WORKS LTD·Filed 1976·Granted Jan 8, 1980·55 cites·9 claims
- 0377US4219079APlate type condenserHISAKA WORKS LTD·Filed 1979·Granted Aug 26, 1980·22 cites·2 claims
- 0475US4371034APlate type evaporatorHISAKA WORKS LTD·Filed 1981·Granted Feb 1, 1983·33 cites·1 claims
- 0567US4492268ACondenserHISAKA WORKS LTD·Filed 1981·Granted Jan 8, 1985·20 cites·1 claims
- 0666US4260013APlate type heat exchangerHISAKA WORKS LTD·Filed 1979·Granted Apr 7, 1981·22 cites·4 claims
- 0765US4458748APlate type evaporatorHISAKA WORKS LTD·Filed 1982·Granted Jul 10, 1984·20 cites·1 claims
- 0865US4180129APlate type condenserHISAKA WORKS LTD·Filed 1977·Granted Dec 25, 1979·22 cites·4 claims
- 0964US4347897APlate type heat exchangerHISAKA WORKS LTD·Filed 1979·Granted Sep 7, 1982·18 cites·5 claims
- 1060US4184542APlate type condenserHISAKA WORKS LTD·Filed 1977·Granted Jan 22, 1980·12 cites·2 claims
- 1158US4509592APlate type evaporatorHISAKA WORKS LTD·Filed 1979·Granted Apr 9, 1985·13 cites·1 claims
- 1257US4779424AHeat recovery system utilizing non-azeotropic mediumHISAKA WORKS LTD·Filed 1987·Granted Oct 25, 1988·16 cites·1 claims
- 1357US4314605ACondenserHISAKA WORKS LTD·Filed 1977·Granted Feb 9, 1982·15 cites·1 claims
- 1457US4291759ACross-current type plate heat exchangerHISAKA WORKS LTD·Filed 1979·Granted Sep 29, 1981·17 cites·2 claims
- 1553US4182410APlate type condenserHISAKA WORKS LTD·Filed 1977·Granted Jan 8, 1980·12 cites·3 claims
- 1649US4216825APlate type evaporatorHISAKA WORKS LTD·Filed 1978·Granted Aug 12, 1980·12 cites·5 claims
- 1746US4827877AHeat recovery system utilizing non-azeotropic mediumHISAKA WORKS LTD·Filed 1988·Granted May 9, 1989·10 cites·1 claims
- 1845US7629187B2Fabrication method of semiconductor luminescent deviceEUDYNA DEVICES INC·Filed 2007·Granted Dec 8, 2009·0 cites·4 claims
- 1944US4841916AEvaporating apparatus with preheaterHISAKA WORKS LTD·Filed 1988·Granted Jun 27, 1989·9 cites·2 claims
- 2043US4296803APlate used in condenserHISAKA WORKS LTD·Filed 1979·Granted Oct 27, 1981·6 cites·1 claims
- 2142US4608829AWaste heat recovering deviceHISAKA WORKS LTD·Filed 1985·Granted Sep 2, 1986·8 cites·2 claims
- 2241US2007218574A1Semiconductor laser manufacturing methodEUDYNA DEVICES INC·Filed 2007·Application pending·0 cites
- 2341US2008175290A1Semiconductor device and method for fabricating the sameEUDYNA DEVICES INC·Filed 2008·Application pending·0 cites
- 2435US4228850APlate used in condenserHISAKA WORKS LTD·Filed 1978·Granted Oct 21, 1980·5 cites·1 claims
- 2533US4785876AHeat recovery system utilizing non-azetotropic mediumHISAKA WORKS LTD·Filed 1988·Granted Nov 22, 1988·3 cites·1 claims
- 2629US4285395AStructure of fluid condensing and heat conducting surface of condenserHISAKA WORKS LTD·Filed 1979·Granted Aug 25, 1981·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →