Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7550180 | Plasma treatment method | Toshiyasu Shirasuna, Kazuyoshi Akiyama, Hitoshi Murayama, Takashi Otsuka, Daisuke Tazawa +2 more | 2009-06-23 |
| 6761128 | Plasma treatment apparatus | Toshiyasu Shirasuna, Kazuyoshi Akiyama, Hitoshi Murayama, Takashi Otsuka, Daisuke Tazawa +2 more | 2004-07-13 |
| 6670089 | Electrophotographic image forming method and apparatus | Toshiyuki Ehara, Junichiro Hashizume, Masaharu Miura | 2003-12-30 |
| 6649020 | Plasma processing apparatus | Ryuji Okamura, Toshiyasu Shirasuna, Kazuhiko Takada, Kazuyoshi Akiyama, Hitoshi Murayama | 2003-11-18 |
| 6486045 | Apparatus and method for forming deposited film | Takashi Otsuka, Toshiyasu Shirasuna, Kazuyoshi Akiyama, Hitoshi Murayama, Daisuke Tazawa +1 more | 2002-11-26 |
| 6443191 | Vacuum processing methods | Hitoshi Murayama, Toshiyasu Shirasuna, Kazuyoshi Akiyama, Takashi Ohtsuka, Daisuke Tazawa +2 more | 2002-09-03 |
| 6300225 | Plasma processing method | Ryuji Okamura, Toshiyasu Shirasuna, Kazuhiko Takada, Kazuyoshi Akiyama, Hitoshi Murayama | 2001-10-09 |
| 6250251 | Vacuum processing apparatus and vacuum processing method | Kazuyoshi Akiyama, Toshiyasu Shirasuna, Hitoshi Murayama, Takashi Otsuka, Daisuke Tazawa +1 more | 2001-06-26 |
| 6165274 | Plasma processing apparatus and method | Kazuyoshi Akiyama, Toshiyasu Shirasuna, Kazuhiko Takada, Ryuji Okamura, Hitoshi Murayama | 2000-12-26 |
| 5961726 | Deposited film forming apparatus and electrode for use in it | — | 1999-10-05 |
| 5741615 | Light receiving member with non-single-crystal silicon layer containing Cr, Fe, Na, Ni and Mg | Keishi Saitoh, Kozo Arao | 1998-04-21 |
| 5604133 | Method of making photovoltaic device | — | 1997-02-18 |
| 5573601 | Pin amorphous silicon photovoltaic element with counter-doped intermediate layer | Keishi Saitoh, Yasushi Fujioka, Masafumi Sano, Mitsuyuki Niwa | 1996-11-12 |
| 5563425 | Photoelectrical conversion device and generating system using the same | Keishi Saito, Masafumi Sano, Mitsuyuki Niwa, Ryo Hayashi, Masahiko Tonogaki | 1996-10-08 |
| 5563075 | Forming a non-monocrystalline silicone semiconductor having pin junction including laminated intrinsic layers | Keishi Saito, Masafumi Sano, Mitsuyuki Niwa, Ryo Hayashi, Masahiko Tonogaki | 1996-10-08 |
| 5527396 | Deposited film forming apparatus | Keishi Saitoh, Masafumi Sano, Mitsuyuki Niwa, Jinsho Matsuyama, Toshimitsu Kariya +3 more | 1996-06-18 |
| 5510631 | Non-monocrystalline silicon carbide semiconductor and semiconductor device employing the same | Keishi Saito, Toshimitsu Kariya, Yuzo Koda | 1996-04-23 |
| 5429685 | Photoelectric conversion element and power generation system using the same | Keishi Saito, Masafumi Sano, Mitsuyuki Niwa, Ryo Hayashi, Masahiko Tonogaki | 1995-07-04 |
| 5417770 | Photovoltaic device and a forming method thereof | Keishi Saitoh, Masafumi Sano, Mitsuyuki Niwa, Jinsho Matsuyama, Toshimitsu Kariya +3 more | 1995-05-23 |
| 5418680 | Apparatus for repairing an electrically short-circuited semiconductor device | Keishi Saito, Mitsuyuki Niwa, Toshimitsu Kariya, Yuzo Koda | 1995-05-23 |
| 5371380 | Si- and/or Ge-containing non-single crystalline semiconductor film with an average radius of 3.5 A or less as for microvoids contained therein and a microvoid density 1.times.10.sup.(19) (cm.sup.-3) or less | Keishi Saito, Mitsuyuki Niwa, Toshimitsu Kariya, Yuzo Koda | 1994-12-06 |
| 5362684 | Non-monocrystalline silicon carbide semiconductor, process of production thereof, and semiconductor device employing the same | Keishi Saito, Toshimitsu Kariya, Yuzo Koda | 1994-11-08 |
| 5358811 | Electrophotographic method using an amorphous silicon light receiving member with a latent image support layer and a developed image support layer and insulating toner having a volume average particle size of 4.5 to 9.0 micron | Koji Yamazaki, Toshimitsu Kariya, Toshiyuki Ehara, Takehito Yoshino, Hirokazu Otoshi | 1994-10-25 |
| 5342452 | Photovoltaic device | Keishi Saito | 1994-08-30 |
| 5338370 | Photovoltaic device | — | 1994-08-16 |