Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7148168 | Method for producing aluminum titanate sintered compact | Tsutomu Fukuda, Masahiro Fukuda, Toshinobu Yoko, Masahide Takahashi | 2006-12-12 |
| 7110182 | Glass sheet incorporating a plurality of optical elements and method for manufacturing the same | Hiroyasu Muto, Katsunori Mukasa, Yasuhiko Sato | 2006-09-19 |
| 7011788 | Method for producing aluminum titanate sintered object | Tsutomu Fukuda, Masahiro Fukuda | 2006-03-14 |
| 6822803 | Optical component with multiple glass optical elements and manufacturing method thereof | Hiroyasu Muto, Katsunori Mukasa, Yasuhiko Sato | 2004-11-23 |
| 6403019 | Process for preparing sintered body of aluminum titanate | Tsutomu Fukuda, Masahiro Fukuda | 2002-06-11 |
| 6088160 | Diffractive optical element | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 2000-07-11 |
| 6078430 | Optical lens and method of making the same | Takashi Ito | 2000-06-20 |
| 6055111 | Plastic lens and method of making a plastic lens | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 2000-04-25 |
| 6050406 | Storage case for diffraction grating | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 2000-04-18 |
| 6034827 | Optical lens | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 2000-03-07 |
| 6010647 | Multifocal lens and method of making the same | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 2000-01-04 |
| 6008957 | Optical lens and method of making the same | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 1999-12-28 |
| 6008955 | Optical lens | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 1999-12-28 |
| 5995304 | Plastic lens | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 1999-11-30 |
| 5982565 | Plastic lens and method of making the same | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 1999-11-09 |
| 5975882 | Molded optical component with gate stubs removed from peripheral rim portions | Yoshimitsu Nomura, Youhei Shinozawa | 1999-11-02 |
| 5960951 | Lens case containing lenses with reduced contact area | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 1999-10-05 |
| 5936782 | Objective lens for a pickup optical system | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 1999-08-10 |
| 5905599 | Optical lens having a hygroscopicity adjusting part | Yoshimitsu Nomura, Takashi Ito, Kaneyoshi Yagi | 1999-05-18 |
| 5851254 | Method for molding vitreous optical elements | — | 1998-12-22 |
| 5185092 | Lubricating oil for refrigerator | Hirotaka Tomizawa, Mitsuo Ohta, Hideki Osaka, Satoshi Ogano, Takehisa Satoh +2 more | 1993-02-09 |
| 4369092 | Process for removing monomer from vinyl chloride resin slurry by steam treatment and apparatus employed therefor | Kazuaki Nakano, Kyuichi Mito, Mikio Shinkai, Shiro Aruga | 1983-01-18 |