Issued Patents All Time
Showing 1–25 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12264217 | Surface treatment film, manufacturing method therefor, and article | Hiroyuki Shimanaka, Yoichi Tagi, Miho Tanishima, Yoshinobu Tsujii, Keita Sakakibara | 2025-04-01 |
| 11174335 | Silicone-modified polyurethane fiber and method for manufacturing same | Hatsuhiko Hattori, Masaki Tanaka, Shota IINO, Motoaki Umezu, Toshihisa Tanaka +1 more | 2021-11-16 |
| 9570245 | Method for producing electrode material for vacuum circuit breaker, electrode material for vacuum circuit breaker and electrode for vacuum circuit breaker | Yasushi Noda | 2017-02-14 |
| 9281136 | Method for producing electrode material for vacuum circuit breaker, electrode material for vacuum circuit breaker and electrode for vacuum circuit breaker | Yasushi Noda | 2016-03-08 |
| 8440112 | Electrode material for vacuum circuit breaker and method of manufacturing the same | Yasushi Noda | 2013-05-14 |
| 8437238 | Diffraction grating, aberration correction element and optical head device | Koji Miyasaka | 2013-05-07 |
| 8279737 | Diffraction grating, aberration correction element and optical head device | Koji Miyasaka | 2012-10-02 |
| 8040782 | Wavelength-selective light-shielding element and optical head using the same | — | 2011-10-18 |
| 8040781 | Wavelength selecting wavelength plate and optical head device using it | Yukihiro Tao, Atsushi Koyanagi, Koji Miyasaka | 2011-10-18 |
| 7790191 | Cosmetic composition | Kazuyuki Hanada, Koji Sakuta, Akira Yamamoto | 2010-09-07 |
| 7755834 | Wavelength-selective diffraction element and optical head device incorporating the same | Atsushi Koyanagi, Yukihiro Tao, Koji Miyasaka | 2010-07-13 |
| 7738346 | Polarizing diffraction element and optical head device | Yoshiharu Ooi, Tomoki Gunjima | 2010-06-15 |
| 7719657 | Liquid crystal lens element and optical head device | Yoshiharu Ooi, Yuzuru Tanabe, Takuji Nomura, Ryuichiro Shimizu | 2010-05-18 |
| 7688700 | Phase correction element and optical head device | Yoshiharu Ooi, Masahiro Murakawa, Masao Miyamura | 2010-03-30 |
| 7623291 | Polarized diffractive filter and layered polarized diffractive filter | — | 2009-11-24 |
| 7564504 | Phase plate and an optical data recording/reproducing device | Yoshiharu Ooi, Ryota Murakami, Takuji Nomura, Masahiro Murakawa, Yoshiyuki Miyake | 2009-07-21 |
| 7534370 | Polymerizable liquid crystal composition, optical anisotropic material, optical element and optical head device | Kara Yoshida, Tomoki Gunjima, Nobuhiko Takeshita, Yuzuru Tanabe, Hiroki Hotaka | 2009-05-19 |
| 7430076 | Diffraction element | Yoshiharu Ooi | 2008-09-30 |
| 7388822 | Liquid crystal lens element and optical head device | Yoshiharu Ooi, Ryuichiro Shimizu, Takuji Nomura, Yuzuru Tanabe, Mitsuo Oosawa | 2008-06-17 |
| 7334270 | Strap for diving face mask | Yuji Kuroda, Minoru Takeuchi | 2008-02-26 |
| 7142363 | Diffraction element and optical device | Hirotaka Nashi | 2006-11-28 |
| 7134149 | Face mask for diving | — | 2006-11-14 |
| 7134433 | Snorkel clip | — | 2006-11-14 |
| 7090594 | Attachment for golf tee | Haruo Kawashima | 2006-08-15 |
| 6917576 | Retarder and optical head device installing the same | Takehiko Nishiyama, Naomitsu Umemura, Masahiro Murakawa, Yoshiharu Ooi, Yuzuru Tanabe | 2005-07-12 |