Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6313947 | Light polarizing glass containing copper particles and process for preparation thereof | Takeshi Takahashi, Tajima Hidemi, Hiroshi Kato | 2001-11-06 |
| 6214429 | Disc substrates for information recording discs and magnetic discs | Xuelu Zou | 2001-04-10 |
| 6187407 | Glass substrate for magnetic recording medium and method of manufacturing the same | Xuelu Zou | 2001-02-13 |
| 6066359 | Process for producing titanium oxide thin film, and photocatalyst | Takeshi Yao, Koji Sato | 2000-05-23 |
| 6063470 | Substrate for information recording media and magnetic disc | Xuelu Zou | 2000-05-16 |
| 5981015 | Method for selecting a material suitable for a substrate for information recording media, material selected using this method, and magnetic disk formed using this material | Xuelu Zou | 1999-11-09 |
| 5856882 | Optical fibers and optical fiber amplifiers | Hiroaki Yanagita, Katsuhisa Itoh, Etsuko Hayashi | 1999-01-05 |
| 5764661 | Laser glasses and laser glass fibers | Hiromasa Tawarayama, Hiroaki Yanagita, Katsuhisa Itoh | 1998-06-09 |
| 5246892 | Faraday rotation glass | Hiroaki Yanagita, Tomoko Kasuga | 1993-09-21 |
| 5053165 | Glass of improved thermal shock resistance for high average power solid state laser system | Yeong Lin, Helmuth E. Meissner | 1991-10-01 |
| 4883523 | Avoidance of surface deterioration of glass during strengthening processes | Huai-Chuan Lee, Helmuth E. Meissner | 1989-11-28 |
| 4693910 | Process for producing porous antireflective coatings | Sadahiro Nakajima | 1987-09-15 |
| 4547402 | Method of increasing the thermal shock resistance of phosphate laser glass | Sadahiro Nakajima, Chiemi Kanamori | 1985-10-15 |
| 4217382 | Edge-cladding glass of disc laser glass | — | 1980-08-12 |