Issued Patents All Time
Showing 25 most recent of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9811230 | Touch panel and production method thereof | Kenji Matsumoto, Tsutomu Ohgushi, Joji AKIZUKI | 2017-11-07 |
| 8766122 | Push type switch | Naoki Iwao | 2014-07-01 |
| 7241547 | Toner, method for forming image using the toner, and process cartridge | Yosuke Morikawa, Takashige Kasuya, Kimihiro Yoshimura, Katsuhisa Yamazaki, Kaori Hiratsuka | 2007-07-10 |
| 7211760 | Membrane switch | Daisuke Hiraoka, Osamu Hirata, Tadanao Matsumoto, Naoki Iwao | 2007-05-01 |
| 7150953 | Developer | Katsuhisa Yamazaki, Takashige Kasuya, Kaori Hiratsuka | 2006-12-19 |
| 7141343 | Toner, method for forming image using the toner, and process cartridge | Yosuke Morikawa, Takashige Kasuya, Kimihiro Yoshimura, Katsuhisa Yamazaki, Kaori Hiratsuka | 2006-11-28 |
| 7043175 | Image forming method and apparatus | Keiji Komoto, Tatsuhiko Chiba, Michihisa Magome, Akira Hashimoto, Takeshi Kaburagi | 2006-05-09 |
| 6897001 | Toner and image forming method | Kiyoshi Mizoe, Fumihiro Arahira, Masanori Ito | 2005-05-24 |
| 6800819 | Tactile switch unit | Mitsunori Sato, Naoki Iwao | 2004-10-05 |
| 6781076 | Swing type multi-way switch | Mitsunori Sato, Naoki Iwao | 2004-08-24 |
| 6641967 | Carrier for electrophotography, two component type developer, and image forming method | Kenji Okado, Tetsuya Ida | 2003-11-04 |
| 6638674 | Magnetic toner | Keiji Komoto, Tatsuhiko Chiba, Michihisa Magome, Akira Hashimoto, Takeshi Kaburagi +1 more | 2003-10-28 |
| 6610454 | Toner and image forming method | Akira Hashimoto, Tsutomu Kukimoto, Manabu Ohno, Yasukazu Ayaki, Satoshi Handa +2 more | 2003-08-26 |
| 6596452 | Magnetic toner and image-forming method making use of the same | Michihisa Magome, Tsutomu Kukimoto, Tatsuhiko Chiba, Akira Hashimoto, Keiji Komoto | 2003-07-22 |
| 6548218 | Magnetic particles for charging means, and electrophotographic apparatus, process cartridge and image forming method including same | Tsutomu Kukimoto, Kenji Okado, Shuichi Aita | 2003-04-15 |
| 6465144 | Magnetic toner, process for production thereof, and image forming method, apparatus and process cartridge using the toner | Akira Hashimoto, Kenji Okado, Tsutomu Kukimoto, Tatsuya Nakamura, Tatsuhiko Chiba +2 more | 2002-10-15 |
| 6447969 | Toner and image forming method | Masanori Ito, Tsutomu Kukimoto, Tatsuhiko Chiba, Michihisa Magome, Akira Hashimoto +1 more | 2002-09-10 |
| 6316156 | Carrier for electrophotography, two component type developer, and image forming method | Kenji Okado, Tetsuya Ida | 2001-11-13 |
| 6214509 | Toner and image forming method | Takashige Kasuya, Tsutomu Kukimoto, Satoshi Yoshida, Hiroshi Yusa, Manabu Ohno +3 more | 2001-04-10 |
| 5998080 | Electrostatic image-developing toner and image-forming method | Manabu Ohno, Tsutomu Kukimoto, Satoshi Yoshida, Yasukazu Ayaki, Satoshi Handa +2 more | 1999-12-07 |
| 5940662 | Charging apparatus and electrophotographic apparatus | Yoshifumi Hano, Shuichi Aita, Tsutomu Kukimoto, Fumihiro Arahira, Yuji Ishihara +1 more | 1999-08-17 |
| 5885742 | Carrier for electrophotography, two-component type developer, and image forming method | Kenji Okado, Toshiyuki Ugai, Ryoichi Fujita | 1999-03-23 |
| 5851714 | Toner for developing electrostatic image and fixing method | Masaaki Taya, Kenji Okado, Ryoichi Fujita, Makoto Kanbayashi, Wakashi Iida +1 more | 1998-12-22 |
| 5802428 | Images forming apparatus and developer for developing electrostatic images | Manabu Ohno, Hisayuki Ochi, Tetsuhito Kuwashima, Hiroyuki Suematsu, Eiichi Imai +3 more | 1998-09-01 |
| 5795693 | Carrier for electrophotography, two component-type developer and image forming method | Kenji Okado, Tetsuya Ida | 1998-08-18 |