Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7379226 | Variable optical attenuator | Teruhisa Nakamura, Kenji Sahara, Yuko Ohta | 2008-05-27 |
| 7336418 | Optical attenuator | Hirotaka Kawai, Hiromitsu Umezawa, Isao Kojima, Teruhisa Sahashi | 2008-02-26 |
| 7283349 | Electric double layer capacitor | Hiroshi Yoshida | 2007-10-16 |