Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10168142 | Optical characteristic measuring apparatus and optical characteristic measuring method | Yuki Sasaki, Seon Heum Na | 2019-01-01 |
| 10120177 | Optical characteristic measurement apparatus and optical system | Hiroyuki Sano | 2018-11-06 |
| 8582124 | Optical characteristic measuring apparatus and optical characteristic measuring method | Yusuke Yamazaki | 2013-11-12 |
| 6777874 | Plasma display panel having uniform space between substrates | Tomoyuki Nakatani | 2004-08-17 |
| 6614183 | Plasma display panel and method of manufacturing the same | Kohsuke Masuda, Hitoshi Taniguchi, Toshihiro Komaki, Kimio Amemiya, Shin Matsuda +1 more | 2003-09-02 |
| 5303224 | Optical pickup, optical information recording carrier and recording and reproducing apparatus thereof | Kiyofumi Chikuma | 1994-04-12 |
| 5278930 | Fiber type wavelength converter | Kiyofumi Chikuma | 1994-01-11 |
| 5197110 | Wavelength converting device having a surrounding resin layer | Kiyofumi Chikuma | 1993-03-23 |
| 5191591 | Laser wavelength converter | Kiyofumi Chikuma | 1993-03-02 |
| 5173962 | Optical wavelength conversion device with high alignment accuracy | Kiyofumi Chikuma | 1992-12-22 |
| 5172369 | Optical pickup, optical information recording carrier and recording and reproducing apparatus thereof | Kiyofumi Chikuma | 1992-12-15 |
| 5165004 | Wavelength conversion element | Kiyofumi Chikuma | 1992-11-17 |
| 5138686 | Fiber type wavelength converter | Kiyofumi Chikuma | 1992-08-11 |
| 5119458 | Fibre-type wavelength converison device | Takafumi Uemiya, Kiyofumi Chikuma | 1992-06-02 |
| 5112122 | Fiber-type light conversion device | Kiyofumi Chikuma | 1992-05-12 |
| 5061038 | Fiber type wavelength converter | Kiyofumi Chikuma | 1991-10-29 |
| 5052772 | Fiber type light wave-length converting apparatus | Kiyofumi Chikuma | 1991-10-01 |
| 5022738 | Optical fiber nonlinear wavelength modulator device | Naota Uenishi, Takafumi Uemiya, Akira Mizoguchi, Yasuji Ogaki, Yasuhiro Hattori +2 more | 1991-06-11 |
| 4981337 | Fibre-type light wavelength coversion device | Kiyofumi Chikuma | 1991-01-01 |
| 4962993 | Fibre-type light conversion device | Kiyofumi Chikuma | 1990-10-16 |
| 4909587 | Fibre-type light conversion device | Kiyofumi Chikuma | 1990-03-20 |
| 4892375 | Fiber-type light conversion device | Kiyofumi Chikuma | 1990-01-09 |