SY

Seiji Yonekura

HI Hitachi: 19 patents #1,906 of 28,497Top 7%
HC Hitachi Setsubi Engineering Co.: 1 patents #6 of 24Top 25%
Overall (All Time): #241,990 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDate
6849128 Organic EL display and production device of color filter cross reference to related application Yoshinobu Fukano, Mamoru Okano, Yasuo Imanishi, Sukekazu Aratani, Yoshiharu Nagae 2005-02-01
6776844 Organic EL display and production device of color filter Yoshinobu Fukano, Mamoru Okano, Yasuo Imanishi, Sukekazu Aratani, Yoshiharu Nagae 2004-08-17
6604816 Ink-jet recording head and ink-jet recorder Yoshinobu Fukano, Mamoru Okano, Tatsuo Igawa, Kazuhito Masuda 2003-08-12
6557981 Ink jet recorder Yoshinobu Fukano, Mamoru Okano, Tatsuo Igawa, Kazuhito Masuda 2003-05-06
6443560 Recording head and inkjet recording device having separately arranged ink chambers and ink discharge unit Mamoru Okano, Yoshinobu Fukano, Tatsuo Igawa, Kazuhito Masuda 2002-09-03
6412916 Ink jet printer Mamoru Okano, Atsushi Onose, Shigetaka Fujiwara, Yoshinobu Fukano, Yoshiharu Nagae 2002-07-02
6328426 Printer device Lee Chahn, Hideki Shinohara, Shigetaka Fujiwara, Shuji Imazeki, Yoshiharu Nagae 2001-12-11
6286938 Ink jet recording head and ink jet recording apparatus Mamoru Okano, Yoshinobu Fukano, Shigetaka Fujiwara, Atsushi Onose 2001-09-11
4922272 High precision image recording apparatus Kazuhiro Wakamatsu, Mitsuo Suzuki, Hiroyuki Tadokoro, Atsuo Suzuki 1990-05-01
4740817 Picture recording apparatus Mitsuo Suzuki, Masayoshi Furuichi 1988-04-26
4549092 Control system for illumination lamp installed in building equipped with door operation control apparatus Shigeru Matsuoka, Koji Yamauchi, Hiroyuki Tadokoro, Mitsuo Suzuki 1985-10-22
4405923 Garage door control system Shigeru Matsuoka, Takeshi Tokunaga, Kogi Yamauchi, Mitsuo Suzuki 1983-09-20
4393342 Door operation control apparatus Shigeru Matsuoka, Takeshi Tokunaga, Koji Yamauchi, Mitsuo Suzuki 1983-07-12
4386398 Automatic door control apparatus Shigeru Matsuoka, Takeshi Tokunaga, Koji Yamauchi, Mitsuo Suzuki 1983-05-31
4383206 Door operation control apparatus Shigeru Matsuoka, Takeshi Tokunaga, Koji Yamauchi, Mitsuo Suzuki 1983-05-10
4365250 Garage door operation control apparatus Shigeru Matsuoka, Takeshi Tokunaga, Mituo Suzuki, Kenji Nakamura 1982-12-21
4344252 Garage door operation control apparatus Mitsuo Suzuki, Takeshi Tokunaga, Shigeru Matsuoka, Kenji Nakamura 1982-08-17
4328540 Door operation control apparatus Shigeru Matsuoka, Toshio Tsubaki, Takeshi Tokunaga, Kenji Nakamura, Mituo Suzuki 1982-05-04
4311225 Device for driving driven member by roller chain Toshio Tsubaki, Takeshi Tokunaga, Shigeru Matsuoka, Makoto Miura, Kozi Yamauchi 1982-01-19