Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12319607 | Glass substrate, method of manufacturing glass substrate, and method of manufacturing glass element using glass substrate | — | 2025-06-03 |
| 12187640 | Glass including a small-transmittance portion and a large-transmittance portion | Yoshitake Tanno | 2025-01-07 |
| 11682425 | Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer | Shinji Eda, Kinobu Osakabe, Yoshitake Tanno | 2023-06-20 |
| 11031038 | Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer | Shinji Eda, Kinobu Osakabe, Yoshitake Tanno | 2021-06-08 |
| 9868661 | Glass lens blank for polishing, manufacturing method therefore, and optical lens manufacturing method | Akihiro Shoji, Yoshitake Tanno, Isao Tanaka | 2018-01-16 |
| 9656905 | Fluorophosphate glass and method for producing the same and near-infrared absorbing filter | Yoshitake Tanno | 2017-05-23 |
| 9236077 | Glass for use as substrate for information recording medium, substrate for information recording medium and information recording medium, and their production methods | Kazuo Tachiwana, Yoichi Hachitani, Xuelu Zou, Kinobu Osakabe | 2016-01-12 |
| 8883330 | Glass for chemical strengthening, substrate for information recording media and information recording media | Xuelu Zou | 2014-11-11 |
| 8785011 | Glass for use as substrate for information recording medium, substrate for information recording medium and information recording medium, and their production methods | Kazuo Tachiwana, Yoichi Hachitani, Xuelu Zou, Kinobu Osakabe | 2014-07-22 |
| 8713970 | Method for producing fluorophosphate glass, glass material for press molding and optical element | — | 2014-05-06 |
| 8697592 | Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied | Atsuko Morita, Xuelu Zou | 2014-04-15 |
| 8652660 | Glass substrate for magnetic recording medium and its use | Hideki Isono, Kinobu Osakabe, Katsuyuki Iwata, Naomi Matsumoto | 2014-02-18 |
| 8642490 | Fluorophosphate glass, precision press molding preform, optical element blank, optical element and method of manufacturing the same | — | 2014-02-04 |
| 8637415 | Fluorophosphate glass, precision press molding preform, optical element blank, optical element and methods of manufacturing the same | — | 2014-01-28 |
| 8633121 | Fluorophosphate glass, glass material for press molding, optical element blank, optical element, processes for production of same, and process for production of glass moldings | — | 2014-01-21 |
| 8476176 | Phosphate glass, fluorophosphate glass, preform for precision press-molding, optical element and process for the production of thereof | — | 2013-07-02 |
| 8431499 | Optical glass, glass material for press molding, optical element blank, optical element and manufacturing method thereof | — | 2013-04-30 |
| 8357459 | Glass for use in substrate for information recording medium, substrate for information recording medium and information recording medium, and their manufacturing method | Kazuo Tachiwana, Yoichi Hachitani, Xuelu Zou, Kinobu Osakabe | 2013-01-22 |
| 8354352 | Optical glass, preform for press forming, optical element, and processes for producing these | — | 2013-01-15 |
| 8261579 | Optical glass, precision press-molding preform and optical element | Xuelu Zou | 2012-09-11 |
| 8222170 | Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied | Atsuko Morita, Xuelu Zou | 2012-07-17 |
| 8198202 | Optical glass, glass material for press molding, optical element blank, optical element and manufacturing method thereof | — | 2012-06-12 |
| 8183169 | Phosphate glass, fluorophosphate glass, preform for precision press-molding, optical element and process for the production of thereof | — | 2012-05-22 |
| 8158541 | Optical glass, precision press-molding preform and optical element | Xuelu Zou | 2012-04-17 |
| 8076014 | Glass for use in substrate for information recording medium, substrate for information recording medium and information recording medium, and their manufacturing method | Kazuo Tachiwana, Yoichi Hachitani, Xuelu Zou, Kinobu Osakabe | 2011-12-13 |