Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11160448 | Optical measurement apparatus for eyeball | Kazutaka TAKEDA, Sho Kimura, Hideaki Ozawa | 2021-11-02 |
| 10869598 | Eyeball optical measuring device and eyeball optical measuring method | Hideaki Ozawa, Kazuyuki Matsushita, Kazutaka TAKEDA, Kouhei YUKAWA, Hideo Nakayama | 2020-12-22 |
| 10349831 | Eyeball optical measuring instrument, eyeball optical measuring method, and method for irradiating an eyeball and detecting light coming from eyeball | Kazuyuki Matsushita, Kazutaka TAKEDA, Kohei YUKAWA, Hideaki Ozawa, Hideo Nakayama | 2019-07-16 |
| 9936874 | Optical measurement apparatus and light irradiation/reception method | Saori NISHIZAKI, Kazutaka TAKEDA, Hideaki Ozawa, Kazuyuki Matsushita, Kohei YUKAWA +2 more | 2018-04-10 |
| 9851293 | Concentration calculation system of optically active substance, manufacturing method of concentration calculation system of optically active substance, and computer readable medium | Kazutaka TAKEDA, Kazuyuki Matsushita, Kohei YUKAWA, Hideaki Ozawa, Hideo Nakayama | 2017-12-26 |
| 9059362 | Light emitting element, light emitting element array, optical writing head, and image forming apparatus | Takashi Kondo, Kazutaka TAKEDA, Hideo Nakayama | 2015-06-16 |
| 8786646 | Light-emitting chip, light-emitting device, print head and image forming apparatus | Yoshinao Kondoh, Seiji Ohno | 2014-07-22 |
| 8759859 | Light-emitting element, self-scanning light-emitting element array, optical writing head, and image forming apparatus | Kazutaka TAKEDA, Takashi Kondo, Hideo Nakayama | 2014-06-24 |
| 8692264 | Light-emitting element, method of manufacturing light-emitting element, self-scanning light-emitting element array, optical writing head, and image forming apparatus | Michiaki Murata, Takashi Kondo, Kazutaka TAKEDA, Hideo Nakayama | 2014-04-08 |
| 8659035 | Light-emitting device, light-emitting device array, optical recording head, image forming apparatus, and method of manufacturing light-emitting device | Takashi Kondo, Kazutaka TAKEDA | 2014-02-25 |
| 7436065 | Electrode contact structure | Seiji Ohno | 2008-10-14 |