Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8178222 | Decorative part and process for producing the same | Koichi Naoi, Osamu Tanaka, Yoshitsugu Shibuya, Junji Sato | 2012-05-15 |
| 8003225 | Decorative article having a white coating | Koichi Naoi, Fumio Tase, Yukio Tanokura | 2011-08-23 |
| 7771836 | Golden ornament and process for producing the same | Koichi Naoi, Fumio Tase, Osamu Tanaka, Masayoshi Ushikubo | 2010-08-10 |
| 7622198 | Decorative article having white coating and method for manufacture thereof | Koichi Naoi, Fumio Tase, Yukio Tanokura | 2009-11-24 |
| 6855215 | Tableware and method for surface treatment thereof, substrate having hard decorative coating film and method for production thereof | Hachirou Kushida, Yutaka Fukumura | 2005-02-15 |
| 6780527 | Decorative article having white film and production method therefor | Koichi Naoi, Akiyoshi Takagi, Fumio Tase, Kazumi Hamano | 2004-08-24 |
| 6579428 | Arc evaporator, method for driving arc evaporator, and ion plating apparatus | Shirou Takigawa, Kouichi Nose, Yasuhiro Koizumi, Takanobu Hori | 2003-06-17 |
| 6517339 | Resin molding mold | Osamu Sugiyama, Hidefumi Kasai | 2003-02-11 |
| 6419997 | Guide bush and method of forming hard carbon film over the inner surface of the guide bush | Osamu Sugiyama, Ryota Koike, Takashi Toida, Sosaku Kimura, Kunihiko Kokubo | 2002-07-16 |
| 6337000 | Guide bush and method of forming diamond-like carbon film over the guide bush | Osamu Sugiyama, Ryota Koike, Takashi Toida | 2002-01-08 |
| 6264209 | Guide bush and method of forming diamond-like carbon film over the guide bush | Osamu Sugiyama, Ryota Koike, Takashi Toida | 2001-07-24 |
| 6217952 | Method of forming films over inner surface of cylindrical member | Osamu Sugiyama, Ryota Koike, Takashi Toida, Toshiichi Sekine | 2001-04-17 |
| 6131533 | Jig for forming hard carbon film over inner surface of guide bush using the jig | Osamu Sugiyama, Ryota Koike, Takashi Toida, Toshiichi Sekine | 2000-10-17 |
| 6126793 | Method of forming films over inner surface of cylindrical member | Osamu Sugiyama, Ryota Koike, Takashi Toida, Toshiichi Sekine | 2000-10-03 |
| 6117496 | Method of forming a hard carbon film over an inner surface of a guide bush using a jig | Osamu Sugiyama, Ryota Koike, Takashi Toida, Toshiichi Sekine | 2000-09-12 |
| 6096390 | Method of forming a hard carbon film over the inner surface of a guide bush | Ryota Koike, Osamu Sugiyama, Takashi Toida, Toshiichi Sekine | 2000-08-01 |
| 6080445 | Method of forming films over insulating material | Osamu Sugiyama, Ryota Koike, Takashi Toida | 2000-06-27 |
| 6056443 | Guide bush and method of forming film over guide bush | Ryota Koike, Osamu Sugiyama, Takashi Toida, Toshiichi Sekine | 2000-05-02 |
| 6033533 | Method of forming films over inner surface of cylindrical member | Osamu Sugiyama, Ryota Koike, Takashi Toida, Toshiichi Sekine | 2000-03-07 |
| 6020036 | Method of forming hard carbon film over the inner surface of guide bush | Osamu Sugiyama, Ryota Koike, Takashi Toida, Toshiichi Sekine | 2000-02-01 |
| 5993680 | Method of removing hard carbon film formed on inner circumferential surface of guide bush | Osamu Sugiyama, Ryota Koike, Takashi Toida, Toshiichi Sekine | 1999-11-30 |
| 5965217 | Method of forming DLC films over inner surface of cylindrical member | Osamu Sugiyama, Ryota Koike, Takashi Toida, Toshiichi Sekine | 1999-10-12 |
| 5941647 | Guide bush and method of forming hard carbon film over the inner surface of the guide bush | Ryota Koike, Osamu Sugiyama, Takashi Toida, Toshiichi Sekine | 1999-08-24 |
| 5939152 | Method of forming hard carbon film over the inner surface of guide bush | Osamu Sugiyama, Ryota Koike, Takashi Toida, Toshiichi Sekine | 1999-08-17 |
| 5934321 | Valve unit for water mixing valve | Osamu Sugiyama, Ryota Koike, Takashi Toida | 1999-08-10 |