Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5916656 | Sheet glass flattening method, method of manufacturing an information recording glass substrate using flattened glass, method of manufacturing a magnetic disk using glass substrate, and magnetic recording medium | Teruki Kitayama, Teruhisa Fujita, Yoshio Murano, Sakuji Yoshihara, Tak Kojima | 1999-06-29 |
| 5725625 | Method of manufacturing a magnetic recording disk using glass substrate | Teruki Kitayama, Teruhisa Fujita, Yoshio Murano, Sakuji Yoshihara, Takeshi Kojima | 1998-03-10 |
| 5681609 | Method of manufacturing a magnetic recording disk | Teruki Kitayama, Teruhisa Fujita, Yoshio Murano, Sakuji Yoshihara, Takeshi Kojima | 1997-10-28 |
| 5654057 | Sheet glass flattening method, method of manufacturing glass substrate for an information recording disk using flattened glass, method of manufacturing a magnetic recording disk using glass substrate, and magnetic recording medium | Teruki Kitayama, Teruhisa Fujita, Yoshio Murano, Sakuji Yoshihara, Takeshi Kojima | 1997-08-05 |
| 5482393 | Corrector | Yoshihiko Chikugo | 1996-01-09 |
| D307920 | Protective end cap for a ball point pen | — | 1990-05-15 |
| 4815880 | Card type writing instrument | — | 1989-03-28 |
| 4283151 | Compound writing instrument | — | 1981-08-11 |
| 4270869 | Composite writing instrument | — | 1981-06-02 |
| 4268183 | Composite writing instrument | — | 1981-05-19 |