Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10751923 | Spark plug insulator production method, insulator, molding die | Hirokazu Kurono, Hironori Uegaki, Toshitaka Honda, Kuniharu Tanaka, Hiroyuki Kawaji | 2020-08-25 |
| 10637212 | Method for manufacturing insulator for spark plug | Hironori Uegaki, Hirokazu Kurono, Toshitaka Honda | 2020-04-28 |
| 10367335 | Spark plug and production method therefor | Yusuke KAWASHIMA | 2019-07-30 |
| 5848336 | Electrostatic latent image developer with shaft bearing members | Yoshiyuki Takeda, Nobuhiro Nakajima | 1998-12-08 |
| 5845178 | Charging device having a charger arrangement frame in which a discharge wire, coil spring and electrode are disposed, for use in a compact electrophotographic image forming apparatus | Masaru Watanabe, Takashi Terada, Hirotsugu Ogawa | 1998-12-01 |
| 5842104 | Image-forming device and a process unit therefor having a guide plate with multiple openings | Nariaki Tanaka, Takashi Terada | 1998-11-24 |
| D401615 | Developing unit for forming an image | Masaru Goto, Masanobu Maeshima | 1998-11-24 |
| 5832342 | Image forming machine with a contact type developing device | Hiroaki Shiba, Toru Ueno | 1998-11-03 |
| 5828938 | Transferring device and image forming apparatus using the same | Masaru Watanabe, Takashi Terada, Hirotsugu Ogawa, Toru Ueno | 1998-10-27 |
| 5826153 | Image-forming machine | Eiichi Miyamoto, Hideo Nakamori, Takashi Terada, Masayuki Ishii, Takahiko Murata | 1998-10-20 |
| 5805959 | Process unit | Hiroyuki Hamakawa, Masaru Watanabe, Takashi Terada, Hirotsugu Ogawa, Masanobu Maeshima | 1998-09-08 |
| 5784673 | Image forming apparatus having a toner brush equipped with a toughening member for materials of the brush | Takashi Terada, Masaru Watanabe | 1998-07-21 |
| 5774768 | Image-forming apparatus and image-forming unit | Masaru Watanabe, Takashi Terada, Hirotsugu Ogawa | 1998-06-30 |
| 5761572 | Image forming apparatus having a transferring unit improved in operational timing | Masaru Watanabe, Takashi Terada | 1998-06-02 |
| 5752132 | Process unit | Masaru Gotoh, Takashi Terada, Nobuhiro Nakajima, Hiroyuki Hamakawa, Nariaki Tanaka | 1998-05-12 |
| 5752134 | Process unit of image forming machine having pre-transfer guide | Masaru Watanabe, Yukinori Akiyama, Masanobu Maeshima, Hirotsugu Ogawa, Takahiko Murata | 1998-05-12 |
| 5659839 | Voltage control apparatus for controlling a charger in an image forming apparatus | Kazuhiro Mizude, Masahiro Tsutsumi, Masaru Watanabe, Hidehiro Tabuchi, Hidekazu Sakagami | 1997-08-19 |
| 5572295 | Voltage control device for a charge | Hidekazu Sakagami, Masahiro Tsutsumi, Masaru Watanabe, Hidehiro Tabuchi, Kazuhiro Mizude +2 more | 1996-11-05 |
| 5547805 | Electrophotographic method using amorphous silicon photosensitive material | Masahiro Tsutsumi, Masaru Watanabe | 1996-08-20 |
| 5258253 | Magnetic carrier for electronic reproduction coated with a nitrogen containing silicone resin | Takatomo Fukumoto, Takashi Teshima, Kazuhiko Yamamura, Kyouya Taguchi, Takeshi Higuchi +1 more | 1993-11-02 |
| 4826750 | Development process in electrophotography utilizing carbon black of specified coloring power | Mamoru Kato, Kouji Maekawa, Kenichi Matsunobu, Naoka Fujie | 1989-05-02 |