Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11292070 | Welding torch and all-position welding device | Masahiko Akamatsu, Shingo Yonemoto, Takanori KOZUKI, Shinya HIBINO, Kenichiro Niimi +1 more | 2022-04-05 |
| 11292073 | Welding torch and all-position welding device | Masahiko Akamatsu, Shingo Yonemoto, Takanori KOZUKI, Shinya HIBINO, Kenichiro Niimi +1 more | 2022-04-05 |
| 11026572 | Ophthalmic examination system and ophthalmic examination management server | Tomohiro Sakurada | 2021-06-08 |
| 10166621 | Welding device and welding system | Chiaki Ito, Shingo Yonemoto, Takanori KOZUKI, Masahiko Akamatsu | 2019-01-01 |
| 10144081 | Arc welding control system and method | Atsuhito Aoki, Masatsugu Takeichi, Masaru Seto | 2018-12-04 |
| 9888847 | Ophthalmic examination system | Tomohiro Sakurada | 2018-02-13 |
| 9468987 | Arc welding control system and method | Atsuhito Aoki, Masatsugu Takeichi, Masaru Seto | 2016-10-18 |
| 7458686 | Optometry apparatus | — | 2008-12-02 |
| 7341349 | Ophthalmologic apparatus and ophthalmologic chart | Yasufumi Fukuma, Kohji Nishio, Takefumi Hayashi, Eiichi Yanagi, Noriyuki Nagai +4 more | 2008-03-11 |
| 6555608 | White standard paint | Takashi Takahashi | 2003-04-29 |
| 6359684 | Lens specifying device | Takeyuki Kato, Eiichi Yanagi | 2002-03-19 |
| 6236453 | Lens meter | Eiichi Yanagi, Yasufumi Fukuma, Takeyuki Kato | 2001-05-22 |
| 6145989 | Lens meter | Eiichi Yanagi, Takeyuki Kato | 2000-11-14 |
| 6061123 | Lens meter | Eiichi Yanagi, Yasufumi Fukuma, Takeyuki Kato | 2000-05-09 |
| 5973772 | Layout judgment apparatus and layout judgment system | Yasufumi Fukuma, Kouichi Matsumoto, Eiichi Yanagi, Takeyuki Kato | 1999-10-26 |
| 5971537 | Lens specifying apparatus | Yasufumi Fukuma, Takeyuki Kato | 1999-10-26 |
| 5917586 | Lens meter for measuring the optical characteristics of a lens | — | 1999-06-29 |
| 5910836 | Lens meter | Eiichi Yanagi, Yasufumi Fukuma, Takeyuki Kato | 1999-06-08 |
| 5896194 | Lens meter | Eiichi Yanagi | 1999-04-20 |
| 5867259 | Hidden-mark observing apparatus and hidden-mark observable lens-meter | Eiichi Yanagi, Shinichi Kobayashi | 1999-02-02 |
| 5708501 | Lens bearer and lensometer incorporating the same | Takashi Takahashi | 1998-01-13 |
| 5414505 | Lens meter for testing progressive lens | Shinichi Kobayashi | 1995-05-09 |
| 4730924 | Lens meter and method of measurement of progressive multifocal lens using the same | Henri Allard, Robert Drummond, Charles Villeneuve | 1988-03-15 |
| 4571842 | Lens judging apparatus of lens meter | Hisakazu Yoshino | 1986-02-25 |