Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11630241 | Polycarbonate resin lens and polycarbonate resin composition | Yoshiyuki Totani | 2023-04-18 |
| 11061258 | Mold for plastic lens, method for manufacturing plastic lens, and plastic lens for eyeglasses | Takashi Suzuki, Kenji Tanagawa, Kiyonori Sato | 2021-07-13 |
| 10525645 | Method for manufacturing functional plastic lens and polarizing plastic lens | Takashi Suzuki, Kiyonori Sato, Kenji Tanagawa | 2020-01-07 |
| 8506857 | Injection compression molding method of lens | Tatsuo Nishimoto, Kenji Tanagawa, Tetsuya Uchida | 2013-08-13 |
| 7332110 | Method and device for producing optical part | Kazuo Inoue, Tadayoshi Uehara | 2008-02-19 |
| 7326375 | Injection compression molding method and injection compression machine of lens | Tatsuo Nishimoto, Kenji Tanagawa, Tetsuya Uchida | 2008-02-05 |
| RE38617 | Method of injection molding plastic lens | Hiroshi Asami | 2004-10-12 |
| 6499986 | Plastic trial lens and injection molded product and mold assembly for making the plastic trial lens | — | 2002-12-31 |
| 6270219 | Plastic trial lens, its injection molded article and its molding apparatus | — | 2001-08-07 |
| 6210610 | Method of manufacturing lens, injection mold for molding of lens, and molded lens | Hiroshi Asami | 2001-04-03 |
| 6156242 | Method of injection molding plastic lens | Hiroshi Asami | 2000-12-05 |
| 5972252 | Injection compression molding method of a spectacle lens and a spectacle lens produced by using the same | Tatsuo Nishimoto, Hiroshi Asami | 1999-10-26 |
| 5948327 | Lens injection-compression-molding method | Hiroshi Asami | 1999-09-07 |
| 5855824 | Ejecting method of a molding in an injection molding apparatus | Tatsuo Nishimoto | 1999-01-05 |
| 5752332 | Hard plate for spiked track shoes | Akira Kataoka, Masanobu Inohara, Ryuichi Tsukita, Toshio Suma | 1998-05-19 |
| 5724754 | Hard plate for spiked track shoes | Akira Kataoka, Masanobu Inohara, Rvuichi Tsukita, Toshio Suma | 1998-03-10 |
| 5689904 | Hard plate for spiked track shoes | Akira Kataoka, Masanobu Inohara, Ryuichi Tsukita, Toshio Suma | 1997-11-25 |
| 5581913 | Hard plate for spiked track shoes | Akira Kataoka, Masanobu Inohara, Ryuichi Tsukita, Toshio Suma | 1996-12-10 |
| 5483760 | Hard plate for spiked track shoes | Akira Kataoka, Masanobu Inohara, Ryuichi Tsukita, Toshio Suma | 1996-01-16 |
| D342373 | Spike | Masanobu Inohara, Akira Kataoka | 1993-12-21 |
| D342152 | Spike | Masanobu Inohara, Akira Kataoka | 1993-12-14 |
| D342151 | Spike for a shoe | Yoshiyuki Murakami, Yasufumi Handa | 1993-12-14 |
| D341938 | Spike | Masanobu Inohara, Akira Kataoka | 1993-12-07 |
| D341704 | Spike for a shoe | Yoshiyuki Murakami, Yasufumi Handa | 1993-11-30 |
| D341702 | Spike for a shoe | Yoshiyuki Murakami, Yasufumi Handa | 1993-11-30 |