Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5790726 | Optical waveguide and process for producing it | Masumi Ito, Akira Inoue, Masakazu Shigehara | 1998-08-04 |
| 5627933 | Optical waveguide and process for producing it | Masumi Ito, Akira Inoue, Masakazu Shigehara | 1997-05-06 |