Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12330984 | Glass and optical element | Koichi Sato, Naomi Matsumoto | 2025-06-17 |
| 12187640 | Glass including a small-transmittance portion and a large-transmittance portion | Mikio Ikenishi | 2025-01-07 |
| 11774649 | Optical element and optical apparatus | Toshiki Nakamura, Yutaka Takakubo, Yasushi Tsutsumi, Naomi Matsumoto | 2023-10-03 |
| 11682425 | Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer | Shinji Eda, Kinobu Osakabe, Mikio Ikenishi | 2023-06-20 |
| 11656456 | Optical element and optical apparatus | Toshiki Nakamura, Masaru Eguchi, Yutaka Takakubo, Naomi Matsumoto | 2023-05-23 |
| 11031038 | Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer | Shinji Eda, Kinobu Osakabe, Mikio Ikenishi | 2021-06-08 |
| 9868661 | Glass lens blank for polishing, manufacturing method therefore, and optical lens manufacturing method | Mikio Ikenishi, Akihiro Shoji, Isao Tanaka | 2018-01-16 |
| 9656905 | Fluorophosphate glass and method for producing the same and near-infrared absorbing filter | Mikio Ikenishi | 2017-05-23 |
| 9481600 | Optical glass, glass material for press molding, optical element, method for producing glass material for press molding, and method for producing optical element | Yuki Shiota | 2016-11-01 |