Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10696022 | Composite plate and production method therefor | Isao Yamashita, Kohei Imai, Shoichi Yamauchi | 2020-06-30 |
| 10682831 | Composite plate and method for producing same | Isao Yamashita, Kohei Imai, Shoichi Yamauchi | 2020-06-16 |
| 9919971 | Zirconia sintered body and use thereof | Hitoshi NAGAYAMA, Naoki Shinozaki, Takeshi Ito, Shoichi Yamauchi | 2018-03-20 |
| 9249057 | Red light transmitting zirconia sintered body, method for producing the same, member comprising the sintered body, and jewelry goods and exterior component using the member | — | 2016-02-02 |
| 9249058 | High-strength transparent zirconia sintered body, process for producing the same, and uses thereof | Isao Yamashita, Masayuki Kudou | 2016-02-02 |
| 9174877 | Colored translucent zirconia sintered body, its production process and its use | Shoichi Yamauchi, Isao Yamashita | 2015-11-03 |
| 8815760 | Transparent zirconia sintered body, method for producing same, and use of same | Masahiro Watanabe, Satoshi Kondoh | 2014-08-26 |
| 8785008 | Zirconia sintered bodies with high total light transmission and high strength, uses of the same, and process for producing the same | Isao Yamashita, Toru Tsuyoshi | 2014-07-22 |
| 8722555 | High-strength transparent zirconia sintered body, process for producing the same, and uses thereof | Isao Yamashita, Masayuki Kudou | 2014-05-13 |
| 8481439 | Colored alumina sintered body of high toughness and high translucency, and its production method and its uses | Isao Yamashita | 2013-07-09 |
| 8215019 | Process for producing an orthodontic bracket | Toru Tsuyoshi | 2012-07-10 |
| 8133051 | Orthodontic bracket and process for producing the same | Toru Tsuyoshi | 2012-03-13 |
| 7888279 | High toughness translucent alumina sintered body, method for producing the same, and its uses | Isao Yamashita, Hitoshi NAGAYAMA | 2011-02-15 |
| 7538055 | Transparent zirconia sintered body | Isao Yamashita | 2009-05-26 |
| 7217406 | Lithium-manganese composite oxide granular secondary particle, method for production thereof and use thereof | Minoru Kuniyoshi | 2007-05-15 |
| 6405563 | Opaque silica glass article having transparent portion and process for producing same | Hiroya Nagata, Masayuki Kudo, Yoshikazu Kikuchi, Tomoyuki Akiyama | 2002-06-18 |
| 6312775 | Opaque silica glass article having transparent portion and process for producing same | Hiroya Nagata, Masayuki Kudo | 2001-11-06 |
| 6133178 | High purity transparent silica glass | Nobusuke Yamada, Shinkichi Hashimoto, Tomoyuki Akiyama, Yoshikazu Kikuchi, Hideaki Segawa | 2000-10-17 |
| 5972488 | Opaque quartz glass and process for production thereof | Hiroya Nagata, Masayuki Kudo | 1999-10-26 |
| 5665133 | Process for production of pure transparent quartz | Koichi Orii, Yukinobu Hara, Tomoyuki Akiyama, Yoshikazu Kikuchi | 1997-09-09 |
| 5585173 | High-purity, opaque quartz glass, method for producing same and use thereof | Kenji Kamo, Kouichi Ono, Hiroya Nagata, Emiko Abe, Yoshikazu Kikuchi +1 more | 1996-12-17 |
| 5229336 | Method of producing oxynitride glass | Tomoyuki Akiyama | 1993-07-20 |
| 5028967 | Achromatic lens for ultraviolet rays | Nobusuke Yamada, Tetsuo Fujii, Hideaki Segawa, Shinichi Kondo, Keishi Honta | 1991-07-02 |
| 4938788 | Method of producing uniform silica glass block | Hideaki Segawa, Shinichi Kondo, Keishi Honta | 1990-07-03 |
| 4915625 | Ceramic orthodontic bracket | Seiji Oda, Hirotoshi Haga | 1990-04-10 |