IS

Ippei Sawayama

Canon: 9 patents #6,722 of 19,416Top 35%
Overall (All Time): #588,189 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6491808 Electrolytic etching method, method for producing photovoltaic element, and method for treating defect of photovoltaic element Hirofumi Ichinose, Tsutomu Murakami, Masaya Hisamatsu, Yukie Ueno 2002-12-10
6425325 Offset printing method and offset printing apparatus Yasuo Mukai, Masayuki Kusakari, Takaomi Ishida 2002-07-30
6214636 Photovoltaic device with improved collector electrode Hitoshi Toma, Yoshihiko Hyosu, Tatsuo Fujisaki, Toshihiko Mimura 2001-04-10
6114185 Welding process and photovoltaic device Koji Tsuzuki, Yoshimitsu Hayashi, Yoshifumi Takeyama 2000-09-05
6051116 Etching apparatus Hirofumi Ichinose, Akio Hasebe, Tsutomu Murakami, Masaya Hisamatsu, Satoshi Shinkura +1 more 2000-04-18
5863412 Etching method and process for producing a semiconductor element using said etching method Hirofumi Ichinose, Akio Hasebe, Tsutomu Murakami, Masaya Hisamatsu, Satoshi Shinkura +1 more 1999-01-26
5428249 Photovoltaic device with improved collector electrode Hitoshi Toma, Yoshihiko Hyosu, Tatsuo Fujisaki, Toshihiko Mimura 1995-06-27
4926085 Vibration wave motor Masayuki Jinnai 1990-05-15
4709221 Sheet coil Susumu Kadokura, Tomoaki Kato, Tadashi Okamoto 1987-11-24