Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10578930 | Liquid crystal display device | — | 2020-03-03 |
| 10317754 | Liquid crystal display device | — | 2019-06-11 |
| 9244546 | Image display device, electronic apparatus using the same, display output control method for image display device, and output control program thereof | Ken Sumiyoshi | 2016-01-26 |
| 8804073 | Optical element and illuminating device, display device, and electronic device, using the optical element | Ken Sumiyoshi | 2014-08-12 |
| 8743317 | Image forming apparatus comprising a transparent layer and an optical absorption layer arranged in a pitch of 1/N of a pixel pitch | Kunihiro Shiota, Hiroshi Tanabe, Koji Shigemura | 2014-06-03 |
| 8552965 | Display device and electronic appliance | Ken Sumiyoshi, Yuji Kondo, Masatake Baba | 2013-10-08 |
| 8493644 | Optical writing device | — | 2013-07-23 |
| 8395726 | Optical element manufacturing method, optical element exposure device, optical element, lighting optical device, display device, and electronic apparatus | Kunihiro Shiota | 2013-03-12 |
| 8382299 | Beam direction control element and method of manufacturing same | Ken Sumiyoshi | 2013-02-26 |
| 8303884 | Soft magnetic material, powder magnetic core, method for manufacturing soft magnetic material, and method for manufacturing powder magnetic core | Toru Maeda, Kazuyuki Maeda, Yasushi Mochida | 2012-11-06 |
| 8298520 | Deodorant particle | Takashi Itoi, Daisuke Yamazaki, Masafumi Miyamoto, Tetsuji Kito, Seiichi Miyanaga +1 more | 2012-10-30 |
| 8269919 | Optical element, and lighting device, display device and electronic device that use the optical element | Ken Sumiyoshi | 2012-09-18 |
| 8233114 | Method for manufacturing optical element | Ken Sumiyoshi | 2012-07-31 |
| 8203671 | View angle controllable display device and terminal having the same | Ken Sumiyoshi | 2012-06-19 |
| 8149350 | Optical element, and lighting device, display device and electronic device that use the optical element | Ken Sumiyoshi | 2012-04-03 |
| 8026880 | Optical element, and illuminating optical device, display device and electronic device using the same | Ken Sumiyoshi | 2011-09-27 |
| 7916241 | Method for manufacturing optical element | Ken Sumiyoshi | 2011-03-29 |
| 7821599 | Image display | Ken Sumiyoshi, Jin Matsushima | 2010-10-26 |
| 7817361 | Beam direction control element and method of manufacturing same | Ken Sumiyoshi | 2010-10-19 |
| 7701532 | Sight controllable display device and terminal having the same | Ken Sumiyoshi | 2010-04-20 |
| 7682695 | Dust core with specific relationship between particle diameter and coating thickness, and method for producing same | Hirokazu Kugai, Naoto Igarashi, Toru Maeda, Kazuhiro Hirose, Haruhisa Toyoda +1 more | 2010-03-23 |
| 7622202 | Soft magnetic material, powder magnetic core, method for manufacturing soft magnetic material, and method for manufacturing powder magnetic core | Toru Maeda, Kazuyuki Maeda, Yasushi Mochida | 2009-11-24 |
| 7556838 | Soft magnetic material, powder magnetic core, method for manufacturing soft magnetic material, and method for manufacturing powder magnetic core | Toru Maeda, Haruhisa Toyoda, Yasushi Mochida | 2009-07-07 |
| 7551340 | Optical element, optical device, mobile information terminal, and manufacturing method | Ken Sumiyoshi | 2009-06-23 |
| 7090388 | Light guide, light source device, display device and information terminal equipped therewith | Yoshie Yagi, Masao Imai, Goro Saito | 2006-08-15 |