TU

Tetsuo Udagawa

FC Fuji Photo Optical Co.: 4 patents #132 of 509Top 30%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
HC Hitachi Car Engineering Co.: 1 patents #275 of 465Top 60%
Overall (All Time): #586,881 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
6793468 Turbo-charger for internal-combustion engine Kazuo Ojima, Noboru Baba, Toshikatsu Akiyama, Katsuhiro Komuro 2004-09-21
6636255 Three-dimensional image scanner and heat-insulating device for optical apparatus Fumio Kobayashi 2003-10-21
6558117 Variable displacement turbo supercharger Masashi Fukaya, Yasunori Murakami, Tsutomu Okazaki 2003-05-06
6082341 Supercharger for engine Nobukatsu Arai, Seiji Sakagami, Tsutomu Okazaki 2000-07-04
6002379 Glass unit 1999-12-14
5825480 Observing apparatus 1998-10-20
5798863 Image stabilized optical system Haruo Kakizawa, Kouichi Nagata, Kazuto Tanaka 1998-08-25
4810086 Portable microfilm reader Hajime Tachibana, Eichi Saito, Hiroshi Fukuda, Koji Ohgaki, Shigeru Kojima 1989-03-07
4810087 Portable microfilm reader Hajime Tachibana, Eichi Saito, Hiroshi Fukuda, Koji Ohgaki, Shigeru Kojima 1989-03-07