Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8223427 | Method of fixing polarization-reversed region formed in ferroelectric single crystal | Xiaoyan Liu, Kazuya Terabe, Shunichi Hishita, Kenji Kitamura | 2012-07-17 |
| 7999983 | Lens material, optical electronic component and optical electronic device | Makoto Kumatoriya, Shinichiro Chiku, Mikio Geho, Takashi Fujii, Kenji Kitamura +1 more | 2011-08-16 |
| 7985294 | Optical device and method of manufacturing the same | Futoshi Yamamoto, Katsutoshi Kondou, Junichiro Ichikawa, Masaru Nakamura, Sunao Kurimura +1 more | 2011-07-26 |
| 7446930 | Method of inverting polarization by controlling defect density or degree of order of lattice points | Kenji Kitamura, Sunao Kurimura, Masaru Nakamura, Kazuya Terabe, Shunichi Hishida +1 more | 2008-11-04 |
| 7403327 | Wavelength conversion element having multi-gratings and light generating apparatus using said element, and wavelength conversion element having cylindrical ferroelectric single crystals and light generating apparatus using said element | Kenji Kitamura, Sunao Kurimura, Masaru Nakamura | 2008-07-22 |
| 6856433 | Holographic recording medium and holographic recording/reproducing apparatus using the same | Hideki Hatano, Takashi Yamaji, Kenji Kitamura, Masaru Nakamura | 2005-02-15 |
| 6814800 | Method for treating photorefractive effect of an optical device and photorefractive effect-suppressed optical frequency conversion device | Kenji Kitamura, Masaru Nakamura, Sunao Kurimura | 2004-11-09 |
| 6747787 | Optically functional device, single crystal substrate for the device and method for its use | Yasunori Furukawa, Kenji Kitamura, Masaru Nakamura | 2004-06-08 |
| 6673330 | Single crystal of lithium niobate or tantalate and its optical element, and process and apparatus for producing an oxide single crystal | Kenji Kitamura, Yasunori Furukawa, Shigeyuki Kimura | 2004-01-06 |
| 6670079 | Photorefractive material | Kenji Kitamura, Yasunori Furukawa, Myeongkyu Lee, Hideki Hatano, Satoru Tanaka +1 more | 2003-12-30 |
| 6624923 | Optically functional device, single crystal substrate for the device and method for its use | Yasunori Furukawa, Kenji Kitamura, Masaru Nakamura | 2003-09-23 |
| 6535472 | Hologram recording apparatus and method therefor | Myeongkyu Lee, Kenji Kitamura, Yasunori Furukawa, Hideki Hatano | 2003-03-18 |
| 6473208 | Two-color holographic recording apparatus | Myeongkyu Lee, Kenji Kitamura, Yasunori Furukawa, Yoshihisa Ito, Hideki Hatano +1 more | 2002-10-29 |
| 6464777 | Single crystal of lithium niobate or tantalate and its optical element, and process and apparatus for producing an oxide single crystal | Kenji Kitamura, Yasunori Furukawa, Shigeyuki Kimura | 2002-10-15 |
| 6373806 | Two-color hologram recording/reproducing apparatus | Kenji Kitamura, Yasunori Furukawa, Myeongkyu Lee, Satoru Tanaka, Takashi Yamaji +1 more | 2002-04-16 |