Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7672050 | Refractive index controlled diffractive optical element and its manufacturing method | Daisuke Shibata, Hidetoshi Takeda, Yoshihito Hatazawa, Toshiro Kotaki | 2010-03-02 |
| 5900148 | Fuel filter and pump assembly | Kouji Izutani, Kingo Okada, Katsuhisa Yamada | 1999-05-04 |