HS

Hiroyuki Sumitomo

HW Hisaka Works: 22 patents #1 of 55Top 2%
ED Eudyna Devices: 1 patents #37 of 80Top 50%
Overall (All Time): #186,239 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
7629187 Fabrication method of semiconductor luminescent device Satoshi KAJIYAMA, Makoto Ueda 2009-12-08
4841916 Evaporating apparatus with preheater Akira Horiguchi 1989-06-27
4827877 Heat recovery system utilizing non-azeotropic medium Akira Horiguchi 1989-05-09
4785876 Heat recovery system utilizing non-azetotropic medium Akira Horiguchi 1988-11-22
4779424 Heat recovery system utilizing non-azeotropic medium Akira Horiguchi 1988-10-25
4753079 Evaporating apparatus 1988-06-28
4608829 Waste heat recovering device Akira Horiguchi 1986-09-02
4509592 Plate type evaporator Ken'ichi Yamada, Akira Horiguchi, Kenzo Masutani 1985-04-09
4492268 Condenser Haruo Uehara 1985-01-08
4458748 Plate type evaporator Ken'ichi Yamada, Akira Horiguchi, Kenzo Masutani 1984-07-10
4371034 Plate type evaporator Ken'ichi Yamada, Akira Horiguchi, Kenzo Masutani 1983-02-01
4347897 Plate type heat exchanger Haruo Uehara 1982-09-07
4314605 Condenser Masafumi Doi, Kazuyuki Kobayashi, Katsutoshi Fukami, Kenzo Kawanishi 1982-02-09
4296803 Plate used in condenser 1981-10-27
4291759 Cross-current type plate heat exchanger 1981-09-29
4285395 Structure of fluid condensing and heat conducting surface of condenser Kenzo Masutani, Akira Horiguchi 1981-08-25
4260013 Plate type heat exchanger 1981-04-07
4228850 Plate used in condenser 1980-10-21
4219079 Plate type condenser 1980-08-26
4216825 Plate type evaporator 1980-08-12
4184542 Plate type condenser 1980-01-22
4182411 Plate type condenser Katsutoshi Fukami, Kazuyuki Kobayashi, Masafumi Doi, Kenzo Kawanishi, Keido Yoshida 1980-01-08
4182410 Plate type condenser Keido Yoshida, Kazuyuki Kobayashi 1980-01-08