Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6217952 | Method of forming films over inner surface of cylindrical member | Osamu Sugiyama, Yukio Miya, Ryota Koike, Takashi Toida | 2001-04-17 |
| 6131533 | Jig for forming hard carbon film over inner surface of guide bush using the jig | Osamu Sugiyama, Yukio Miya, Ryota Koike, Takashi Toida | 2000-10-17 |
| 6126793 | Method of forming films over inner surface of cylindrical member | Osamu Sugiyama, Yukio Miya, Ryota Koike, Takashi Toida | 2000-10-03 |
| 6117496 | Method of forming a hard carbon film over an inner surface of a guide bush using a jig | Osamu Sugiyama, Yukio Miya, Ryota Koike, Takashi Toida | 2000-09-12 |
| 6096390 | Method of forming a hard carbon film over the inner surface of a guide bush | Ryota Koike, Yukio Miya, Osamu Sugiyama, Takashi Toida | 2000-08-01 |
| 6056443 | Guide bush and method of forming film over guide bush | Ryota Koike, Yukio Miya, Osamu Sugiyama, Takashi Toida | 2000-05-02 |
| 6033533 | Method of forming films over inner surface of cylindrical member | Osamu Sugiyama, Yukio Miya, Ryota Koike, Takashi Toida | 2000-03-07 |
| 6020036 | Method of forming hard carbon film over the inner surface of guide bush | Osamu Sugiyama, Yukio Miya, Ryota Koike, Takashi Toida | 2000-02-01 |
| 5993680 | Method of removing hard carbon film formed on inner circumferential surface of guide bush | Osamu Sugiyama, Yukio Miya, Ryota Koike, Takashi Toida | 1999-11-30 |
| 5965217 | Method of forming DLC films over inner surface of cylindrical member | Osamu Sugiyama, Yukio Miya, Ryota Koike, Takashi Toida | 1999-10-12 |
| 5941647 | Guide bush and method of forming hard carbon film over the inner surface of the guide bush | Ryota Koike, Yukio Miya, Osamu Sugiyama, Takashi Toida | 1999-08-24 |
| 5939152 | Method of forming hard carbon film over the inner surface of guide bush | Osamu Sugiyama, Yukio Miya, Ryota Koike, Takashi Toida | 1999-08-17 |
| 5922418 | Method of forming a DLC film over the inner surface of guide bush | Ryota Koike, Yukio Miya, Osamu Sugiyama, Takashi Toida | 1999-07-13 |