Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10486489 | Vehicle air-conditioning system | Yuji Igarashi, Masahiko Ikawa, Kazushi Shirasawa, Takashi Irie | 2019-11-26 |
| 10066953 | Destination estimating system and destination estimating method | Masahiko Ikawa, Hiroki Konaka, Ryusuke Kinoshita | 2018-09-04 |
| 9488847 | Variable optical attenuator | Hiroaki Ono, Kenji Sahara, Takashi Kato | 2016-11-08 |
| 9291471 | In-vehicle information processing device and driving assist device | Masahiko Ikawa, Yuji Igarashi, Takashi Irie | 2016-03-22 |
| 9207091 | Drive assistance device | Masahiko Ikawa, Ryusuke Kinoshita, Shigeki Morita | 2015-12-08 |
| 9183740 | Travel pattern generation device | Masahiko Ikawa, Norihiro Nishiuma, Yoshitsugu Sawa, Hiroyuki Kumazawa, Takashi Irie | 2015-11-10 |
| 8854716 | Reflection type variable optical attenuator | Hiroaki Ono, Hidenori Nakada, Hirotaka Kawai, Taro Nakamura | 2014-10-07 |
| 7983583 | Image forming apparatus, image forming method, and computer program product | Yasuko Yamazaki | 2011-07-19 |
| 7142362 | Optical attenuator | Hidenori Nakada, Shusuke Wada, Keisuke Ikeda | 2006-11-28 |
| 7050216 | Variable optical filter | Nobuhiro Fukushima, Hidenori Nakada, Tsugio Tokumasu | 2006-05-23 |
| 6870675 | Variable optical attenuator | Keisuke Ikeda, Shohei Abe, Isao Kojima, Ikuo Maeda | 2005-03-22 |
| 5867314 | Structure of optical passive device and assembling method therefor | Koyu Takahashi, Shigetaka Goto, Mototsugu Goto, Terushi Otani | 1999-02-02 |