Issued Patents All Time
Showing 26–50 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7184699 | Cleaning blade for image formation apparatus | Osamu Naruse, Masahiko Shakuto, Kazuhiko Watanabe | 2007-02-27 |
| 7129682 | DC to DC converter producing output voltage exhibit rise and fall characteristics independent of load thereon | Mitsuo Saeki, Hidekiyo Ozawa, Seiya Kitagawa, Toshiyuki Matsuyama, Takashi Matsumoto +2 more | 2006-10-31 |
| 6940737 | Power supply control method | Shigeaki Nakazawa, Hidekiyo Ozawa, Mitsuo Saeki, Kouichi Matsuda, Shigeo Tanaka | 2005-09-06 |
| 6911806 | DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereon | Mitsuo Saeki, Hidekiyo Ozawa, Seiya Kitagawa, Toshiyuki Matsuyama, Takashi Matsumoto +2 more | 2005-06-28 |
| 6882809 | Image forming device with duct for exhausting heat outside main body case | Atsuo Hirose, Yasuo Tamaru | 2005-04-19 |
| 6853822 | Device for removing image disfiguring substances and image forming apparatus using the same | Aino Noguchi, Hiromitsu Takagaki, Kiyoshi Tanikawa, Chiaki Tanaka | 2005-02-08 |
| 6847795 | Image forming apparatus | Atsuo Hirose | 2005-01-25 |
| 6727649 | Fluorescent lamp, discharge lamp and liquid crystal backlight device incorporating this | Takanobu Ueno | 2004-04-27 |
| 6664772 | DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereon | Mitsuo Saeki, Hidekiyo Ozawa, Seiya Kitagawa, Toshiyuki Matsuyama, Takashi Matsumoto +2 more | 2003-12-16 |
| 6643479 | Air duct, cooling mechanism, and image forming device incorporating cooling mechanism | — | 2003-11-04 |
| 6639812 | Power supply control circuit that adjusts output power based on variable input power | Shigeaki Nakazawa, Hidekiyo Ozawa, Mitsuo Saeki, Kouichi Matsuda, Shigeo Tanaka | 2003-10-28 |
| 6366751 | Image forming apparatus including preselected range between charge injection layer and voltage potential | Masahiko Shakuto, Tsukuru Kai, Takahiko Tokumasu, Hiroshi Ikuno, Kei Yasutomi +3 more | 2002-04-02 |
| 6366475 | Power control method and circuit, and power supply unit | Shigeaki Nakazawa, Shigeo Tanaka, Hidekiyo Ozawa | 2002-04-02 |
| 6204648 | DC-to-DC converter capable of preventing overvoltage | Mitsuo Saeki, Hidekiyo Ozawa | 2001-03-20 |
| 6147477 | DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereon | Mitsuo Saeki, Hidekiyo Ozawa, Seiya Kitagawa, Toshiyuki Matsuyama, Takashi Matsumoto +2 more | 2000-11-14 |
| 6046896 | DC-to-DC converter capable of preventing overvoltage | Mitsuo Saeki, Hidekiyo Ozawa | 2000-04-04 |
| 6028755 | DC-to-DC converter capable of preventing overvoltages | Mitsuo Saeki, Hidekiyo Ozawa | 2000-02-22 |
| 6008629 | Charging-and-discharging device for an electronic apparatus, and an electronic apparatus including the same, utilizing a charging device providing a constant charging current | Mituo Saeki, Masafumi Okumura, Hidekiyo Ozawa | 1999-12-28 |
| 5999773 | Image forming apparatus and cleaning method for contact-charging member | Kei Yasutomi, Masako Yoshii, Nobuto Yokokawa | 1999-12-07 |
| 5980137 | Printer for facsimile machine | Yoshikatsu Kameyama | 1999-11-09 |
| 5872445 | Power supply device having low internal power consumption and electronic appliances using said power supply device | Hidekiyo Ozawa, Masafumi Okumura, Mituo Saeki | 1999-02-16 |
| 5801514 | Charging-and-discharging control device, a battery pack, and an electronic apparatus with improved charge and discarge control | Mituo Saeki, Hidekiyo Ozawa | 1998-09-01 |
| 5781000 | Power control unit loading test method | Mitsuo Saeki, Kouichi Matsuda, Hidekiyo Ozawa | 1998-07-14 |
| 5765087 | Color image forming method and color image forming apparatus practicable therewith | Yasushi Nakazato, Takayuki Kimura, Masako Yoshii, Hiroyasu Itou | 1998-06-09 |
| 5740494 | Configured to enhance toner collecting efficiency and toner redepositing efficiency | Hisashi Shoji, Osamu Endo, Kei Yasutomi, Masako Yoshii, Yasushi Nakazato +1 more | 1998-04-14 |