Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7901074 | Lens for safety glasses | Yoshihisa Ishiba, Koichiro Oka | 2011-03-08 |
| 7318960 | Polarizing molded article and process for preparing the same | Ryoji Kammori, Nobuyuki Kobuchi, Koichiro Oka | 2008-01-15 |
| 6814902 | Method for continuously manufacturing optical article | Fumio Ishibashi, Koichiro Oka | 2004-11-09 |
| 6810536 | Swimming goggles | Yoshihisa Ishiba, Kazuko Mabuchi | 2004-11-02 |
| 6659608 | Polarizing optical article | Yoshihisa Ishiba, Koichiro Oka | 2003-12-09 |
| D480412 | Eye glasses | — | 2003-10-07 |
| 6613433 | Polarizing optical composite and polarizing lens | Masahiko Okamoto, Koichiro Oka | 2003-09-02 |
| 6611966 | Goggles | Tomihiro Funamoto, Kimio Matsumoto | 2003-09-02 |
| D401956 | Eyecup | — | 1998-12-01 |
| D391283 | Swimming goggles | — | 1998-02-24 |
| 5687428 | Goggles | — | 1997-11-18 |
| D370929 | Eye glasses | — | 1996-06-18 |
| D370930 | Eye glasses | — | 1996-06-18 |
| D367665 | Eye-glasses | — | 1996-03-05 |
| 5459882 | Swimming goggles | — | 1995-10-24 |
| D350145 | Sunglasses | — | 1994-08-30 |
| 4768234 | Ski glove with a protector | — | 1988-09-06 |
| 4584721 | Device for use in helmet for preventing fogging by electric heating | — | 1986-04-29 |
| 4556995 | Goggles for sports | — | 1985-12-10 |
| 4502480 | Helmet equipped with device for supplying atmospheric air | — | 1985-03-05 |
| 4498202 | Helmet equipped with ventilator | — | 1985-02-12 |
| 4290673 | Ski goggles | — | 1981-09-22 |