KH

Keiji Hirao

FI Fujikin Incorporated: 27 patents #16 of 318Top 6%
UN Unknown: 8 patents #1,262 of 83,584Top 2%
SC Sanyo Electric Co.: 7 patents #794 of 6,347Top 15%
TO Tadahiro Ohmi: 4 patents #6 of 65Top 10%
NO Nof: 3 patents #95 of 561Top 20%
TU Tohoku University: 1 patents #615 of 1,680Top 40%
NC Nippon Oil & Fats Co.: 1 patents #173 of 409Top 45%
📍 Kasai, JP: #139 of 5,842 inventorsTop 3%
Overall (All Time): #85,837 of 4,157,543Top 3%
38
Patents All Time

Issued Patents All Time

Showing 26–38 of 38 patents

Patent #TitleCo-InventorsDate
6039360 Couplings for fluid controllers Tadahiro Ohmi, Michio Yamaji, Tsutomu Shinohara, Shigeru Itoi, Yuji Kawano +4 more 2000-03-21
6014498 Device for heating fluid control apparatus Nobukazu Ikeda, Yuji Kawano, Masayuki Hatano, Yukio Minami, Hiroshi Morokoshi 2000-01-11
5988217 Shutoff-opening device Tadahiro Ohmi, Shigeaki Tanaka, Michio Yamaji, Hiroshi Morokoshi, Nobukazu Ikeda 1999-11-23
5983933 Shutoff-opening device Tadahiro Ohmi, Yuji Kawano, Hisashi Tanaka, Naoya Masuda, Yukio Minami +8 more 1999-11-16
5975112 Fluid control device Tadahiro Ohmi, Yukio Minami, Michio Yamaji, Takashi Hirose, Nobukazu Ikeda 1999-11-02
5943303 Disk playback device and method of controlling the device Tadahiro Mitani, Hitoshi Ogata, Masanao Yoshida 1999-08-24
5904381 Fluid coupling Tadahiro Ohmi, Tsutomu Shinohara, Michio Yamaji, Nobukazu Ikeda 1999-05-18
5892738 Disk recording-playback device and disk loading or unloading method Tadahiro Mitani, Hitoshi Ogata, Masanao Yoshida 1999-04-06
5837907 Method of tightening threaded members Tadahiro Ohmi, Eiji Ideta, Hiroyuki Fukuda, Tsutomu Shinohara, Michio Yamaji +2 more 1998-11-17
5769110 Fluid control apparatus Tadahiro Ohmi, Michio Yamaji, Shigeru Itoi, Tsutomu Shinohara, Nobukazu Ikeda +2 more 1998-06-23
5721715 Control system for disc playing device Tadahiro Mitani, Masanao Yoshida, Hitoshi Ogata 1998-02-24
5671196 Method for controlling a rotatable optical disk storing magazine Masanao Yoshida, Tadahiro Mitani, Hitoshi Ogata 1997-09-23
5104925 Synthetic resin compositions Susumu Honda, Takahiko Sugihara, Taizo Igarashi, Hisamichi Matsuda 1992-04-14