HO

Hiroyuki Ohtsuka

SC Shin-Etsu Chemical Co.: 29 patents #144 of 2,176Top 7%
TO Topcon: 9 patents #91 of 684Top 15%
SC Shin-Etsu Handotai Co.: 7 patents #106 of 679Top 20%
FI Fujifilm Business Innovation: 3 patents #2,355 of 5,238Top 45%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
NT NTT: 1 patents #2,911 of 4,871Top 60%
MC Mitsubishi Gas Chemical Company: 1 patents #1,048 of 1,727Top 65%
Canon: 1 patents #14,899 of 19,416Top 80%
OM Omron: 1 patents #1,808 of 3,089Top 60%
Overall (All Time): #56,056 of 4,157,543Top 2%
49
Patents All Time

Issued Patents All Time

Showing 26–49 of 49 patents

Patent #TitleCo-InventorsDate
7615391 Solar cell and method of fabricating the same Satoyuki Ojima, Masatoshi Takahashi, Takenori Watabe 2009-11-10
7355114 Solar cell and its manufacturing method Satoyuki Ojima, Masatoshi Takahashi, Takenori Watabe 2008-04-08
7294779 Solar cell and method for producing the same Takenori Watabe, Masatoshi Takahashi, Satoyuki Ojima, Takao Abe 2007-11-13
6963024 Solar cell module and its installing module Satoyuki Ojima, Masatoshi Takahashi, Takenori Watabe, Takao Abe 2005-11-08
6546198 Fundus camera for diagnostic fundus photographing 2003-04-08
6461947 Photovoltaic device and making of the same Tsuyoshi Uematsu, Yoshiaki Yazawa, Ken Tsutsui 2002-10-08
6411785 Fixing unit, fixing method and image forming apparatus using the same Norio Ogawahara, Yasuto Okabayashi 2002-06-25
6404985 Fundus camera for diagnostic fundus photographing 2002-06-11
6323415 Light concentrator photovoltaic module method of manufacturing same and light concentrator photovoltaic system Tsuyoshi Uematsu, Terunori Warabisako, Yoshiaki Yazawa, Yoshinori Miyamura, Ken Tsutsui +2 more 2001-11-27
6294723 Photovoltaic device, photovoltaic module and establishing method of photovoltaic system Tsuyoshi Uematsu, Terunori Warabisako, Yoshiaki Yazawa, Yoshinori Miyamura, Ken Tsutsui +2 more 2001-09-25
D438891 Cleaning cartridge Hirohisa Hoshino, Seiichi Irokawa, Hidenobu Kondo, Yasuhito Takahashi 2001-03-13
D435061 Oil cartridge Hidenobu Kondo, Seiichi Irokawa, Hirohisa Hoshino, Yasuhito Takahashi 2000-12-12
6082859 Ophthalmological photographing apparatus Toshihiro Okashita, Takeyuki Kato 2000-07-04
5959440 Load control device for an AC circuit Koukichi Tobita, Kazunori Kajitani 1999-09-28
5896292 Automated system for production facility Kotaro Hosaka, Masaru Matsuhisa, Nobuyuki Yoshida 1999-04-20
5594512 Ophthalmological photographing instrument Yutaka Yoneda 1997-01-14
5572266 Fundus camera 1996-11-05
5436679 Apparatus for observing and photographing a corneal endothelium Kenjirou Katsuragi, Masaru Sato, Kouji Nishio, Hiroshi Iijima 1995-07-25
5432569 Illumination optical system of an ophthalmologic instrument 1995-07-11
5237356 Fundus camera photographic optical system 1993-08-17
5189556 Color photography optical system 1993-02-23
5182010 Mesophase pitch for use in the making of carbon materials Isao Mochida, Yukio Sakai 1993-01-26
4910468 Dual polarization demodulation with cross polarization cancellation Hideaki Matsue, Tadashi Shirato, Takehiro Murase 1990-03-20
4779973 Photokeratometric device David Brian Miller, Hirofumi Matsuzawa, Paul R. Cotran 1988-10-25