Issued Patents All Time
Showing 201–225 of 256 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6268583 | Plasma torch of high cooling performance and components therefor | Kazuhiro Kuraoka | 2001-07-31 |
| 6248972 | Plasma cutting method, device and gas supply system for plasma cutting torch | — | 2001-06-19 |
| 6222154 | Plasma cutting method and device with the use of a plasma torch | Tetsuya Kabata, Kenichi Nishihara | 2001-04-24 |
| 6203674 | Continuous forming method for TI/TIN film | — | 2001-03-20 |
| 6025622 | Conductivity modulated MOSFET | Akio Nakagawa, Hiromichi Ohashi, Kiminori Watanabe, Thuneo Thukakoshi | 2000-02-15 |
| 6023524 | Method for determining amount of exposure | — | 2000-02-08 |
| 5994740 | Semiconductor device | Akio Nakagawa, Tomoko Matsudai | 1999-11-30 |
| 5985708 | Method of manufacturing vertical power device | Akio Nakagawa, Naoharu Sugiyama, Tomoko Matsudai, Norio Yasuhara, Atsusi Kurobe +2 more | 1999-11-16 |
| 5981983 | High voltage semiconductor device | Hideyuki Funaki | 1999-11-09 |
| 5978065 | Liquid crystal device and manufacturing method and apparatus therefor | Koichi Kawasumi, Takeshi Yamasaki, Eriko Matsui, Akio Yasuda, Yuji Shiina +1 more | 1999-11-02 |
| 5938948 | Plasma arc spot welding of car body steels containing vaporizable ingredients | Alvin Kenneth Oros, Jay C. Chennat | 1999-08-17 |
| 5900168 | Plasma cutting method | Katsuo Saio | 1999-05-04 |
| 5828112 | Semiconductor device incorporating an output element having a current-detecting section | — | 1998-10-27 |
| 5780887 | Conductivity modulated MOSFET | Akio Nakagawa, Hiromichi Ohashi, Kiminori Watanabe, Thuneo Thukakoshi | 1998-07-14 |
| 5777371 | High-breakdown-voltage semiconductor device | Yusuke Kawaguchi, Hideyuki Funaki | 1998-07-07 |
| 5734144 | Plasma arc welding method and apparatus in which a swirling flow is imparted to a plasma gas to stabilize a plasma arc | Iwao Kurokawa, Masamitsu Kitahashi, Mikio Minonishi | 1998-03-31 |
| 5708287 | Power semiconductor device having an active layer | Akio Nakagawa, Tomoko Matsudai | 1998-01-13 |
| 5686983 | Photoprinting method with means to determing the original light source including the presence or absence of flashes of light | — | 1997-11-11 |
| 5640040 | High breakdown voltage semiconductor device | Akio Nakagawa, Norio Yasuhara, Tomoko Matsudai, Ichiro Omura, Hideyuki Funaki | 1997-06-17 |
| 5635736 | MOS gate type semiconductor device | Hideyuki Funaki | 1997-06-03 |
| 5628924 | Plasma arc torch | Toshio Yoshimitsu, Hitoshi Sato, Noriyuki Sekizawa, Yoshitaka Niigaki, Yuuichi Takabayashi | 1997-05-13 |
| 5592014 | High breakdown voltage semiconductor device | Hideyuki Funaki, Akio Nakagawa, Norio Yasuhara, Tomoko Matsudai, Ichiro Omura | 1997-01-07 |
| 5506384 | Plasma arc cutting machine with variable constant current source and variable resistor | — | 1996-04-09 |
| 5463231 | Method of operating thyristor with insulated gates | Tsuneo Ogura, Kiminori Watanabe, Akio Nakagawa, Norio Yasuhara, Tomoko Matsudai +2 more | 1995-10-31 |
| 5438220 | High breakdown voltage semiconductor device | Akio Nakagawa, Norio Yasuhara, Tomoko Matsudai, Ichiro Omura, Hideyuki Funaki | 1995-08-01 |