Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12322995 | Electric power supply system having a bidirecttional electric power conversion device and a control device that executes a first precharge processing | — | 2025-06-03 |
| 10625609 | Power control unit | — | 2020-04-21 |
| 9109985 | Malfunction detecting device and malfunction detecting method for cooling device | — | 2015-08-18 |
| 8854706 | Auto document feeding device | Masakazu Iwamoto, Shinichi Miyakawa, Seiji Iino, Akihito Tokutsu, Mitsunori Ishii +1 more | 2014-10-07 |
| 8203767 | Auto document feeding device | Masakazu Iwamoto, Seiji Iino, Akihito Tokutsu, Shinichi Miyakawa, Mitsunori Ishii | 2012-06-19 |
| 8199383 | Auto document feeding device and image scanning device | Akihito Tokutsu, Seiji Iino, Mitsunori Ishii, Masakazu Iwamoto, Shinichi Miyakawa | 2012-06-12 |
| 7828292 | Sheet conveying device and image forming apparatus | — | 2010-11-09 |
| 7500670 | Sheet conveying device and image forming apparatus | — | 2009-03-10 |
| 7128459 | Light-guide plate and method for manufacturing the same | Junichi Igarashi, Koki Kunii | 2006-10-31 |
| 6896386 | Surface emitting device | Masaaki Takagi | 2005-05-24 |
| 6330423 | Image forming apparatus | — | 2001-12-11 |
| 5208791 | System for recovering a CD in a CD player having a magazine containing a plurality of disks | Sei Onishi, Atsushi Kurosawa, Kiyoshi Morikawa, Kaoru Takemasa, Kiyohito Kajihara | 1993-05-04 |
| 5164929 | Stopper for trays in a magazine of a CD player | Atsushi Kurosawa, Sei Onishi, Kiyoshi Morikawa, Kiyohito Kajihara, Kaoru Takemasa | 1992-11-17 |
| 5145039 | Damper filled with oil | Kiyoshi Morikawa, Atsushi Kurokawa, Sei Onishi, Kiyohito Kajihara, Kaoru Takemasa | 1992-09-08 |
| 5136563 | Magazine holder in a CD player | Kaoru Takemasa, Atsushi Kurosawa, Sei Onishi, Kiyohito Kajihara, Kiyoshi Morikawa | 1992-08-04 |
| 5078380 | Apparatus for feeding sheet material | — | 1992-01-07 |
| 5077717 | System for detecting a CD on a tray in a compact disk player having a magazine containing a plurality of disks | Sei Onishi, Atsushi Kurosawa, Kiyoshi Morikawa, Kaoru Takemasa, Kiyohito Kajihara | 1991-12-31 |
| 4646194 | PG yoke position detecting apparatus | Shigekazu Nakamura, Masao Nakamori, Yoshiyuki Ohzeki | 1987-02-24 |