Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11534062 | Eye chart presentation device and ophthalmologic apparatus | — | 2022-12-27 |
| 9717408 | Ophthalmologic imaging apparatus for stimulated eye | Masahiro Akiba, Yasufumi Fukuma, Hiroshi Akiyama, Hisashi Tsukada | 2017-08-01 |
| 7715023 | Jig mounting apparatus | Takahiro Watanabe, Yoshimasa Ogawa, Tsutomu Kikawa, Kazuo Kitamura, Yasuo Suzuki +1 more | 2010-05-11 |
| 7341349 | Ophthalmologic apparatus and ophthalmologic chart | Yasufumi Fukuma, Kohji Nishio, Takefumi Hayashi, Noriyuki Nagai, Yasuo Kato +4 more | 2008-03-11 |
| 7301614 | Lens-refracting characteristic measuring apparatus | Shinichi Nakamura | 2007-11-27 |
| 7280191 | Lens meter | Shinichi Nakamura | 2007-10-09 |
| 7088439 | Lens meter | Yasufumi Fukuma, Takeyuki Kato | 2006-08-08 |
| 6950180 | Lens meter | Yasufumi Fukuma, Takeyuki Kato | 2005-09-27 |
| 6943481 | Vibration member and vibration wave driving apparatus | Takuji Okamoto, Masaharu Suzuki, Yoshifumi Nishimoto, Hirokazu Hashidume, Osamu Yanase | 2005-09-13 |
| 6847441 | Method of measuring optical characteristics of spectacle lenses and lens meter | Shinichi Nakamura | 2005-01-25 |
| 6844925 | Apparatus for measuring refractive power | Yasufumi Fukuma | 2005-01-18 |
| 6809460 | Position control apparatus and method for table member | Takuji Okamoto, Masaharu Suzuki, Yoshifumi Nishimoto | 2004-10-26 |
| 6778264 | Lens meter | Yasufumi Fukuma, Takeyuki Kato | 2004-08-17 |
| 6593712 | Drive control device of vibration wave motor | Yoshifumi Nishimoto, Makoto Shiomi | 2003-07-15 |
| 6480267 | Wavefront sensor, and lens meter and active optical reflecting telescope using the same | Makoto Fujino | 2002-11-12 |
| 6359684 | Lens specifying device | Yukio Ikezawa, Takeyuki Kato | 2002-03-19 |
| 6236453 | Lens meter | Yukio Ikezawa, Yasufumi Fukuma, Takeyuki Kato | 2001-05-22 |
| 6145989 | Lens meter | Yukio Ikezawa, Takeyuki Kato | 2000-11-14 |
| 6118528 | Measuring container for contact lens meter | — | 2000-09-12 |
| 6061123 | Lens meter | Yukio Ikezawa, Yasufumi Fukuma, Takeyuki Kato | 2000-05-09 |
| 5973772 | Layout judgment apparatus and layout judgment system | Yasufumi Fukuma, Kouichi Matsumoto, Yukio Ikezawa, Takeyuki Kato | 1999-10-26 |
| 5945771 | Vibration wave driven motor and a printing apparatus | Atsushi Kimura, Yoshifumi Nishimoto, Hiroyuki Seki, Shinji Yamamoto | 1999-08-31 |
| 5910836 | Lens meter | Yukio Ikezawa, Yasufumi Fukuma, Takeyuki Kato | 1999-06-08 |
| 5896194 | Lens meter | Yukio Ikezawa | 1999-04-20 |
| 5867259 | Hidden-mark observing apparatus and hidden-mark observable lens-meter | Shinichi Kobayashi, Yukio Ikezawa | 1999-02-02 |