HK

Hidemasa Koh

AC Asahi Glass Co.: 8 patents #241 of 2,251Top 15%
AC Agc Seimi Chemical Co.: 3 patents #6 of 38Top 20%
SC Seimi Chemical Co.: 3 patents #16 of 75Top 25%
Overall (All Time): #422,846 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
8574455 Fluorine-containing liquid crystal compound, liquid crystal composition, and liquid crystal electro-optic element Tomoko Yaguchi, Tomoyuki Asai 2013-11-05
8283001 Liquid crystal compound and process for production thereof, liquid crystal composition, and liquid crystal electrooptical element Atsushi Kawamata, Tomoyuki Asai 2012-10-09
8273420 Liquid crystal compound and process for production thereof, liquid crystal composition, and liquid crystal electrooptical element Atsushi Kawamata, Tomoyuki Asai 2012-09-25
5914071 Difluoroethylene compounds and liquid crystal compositions containing them Seiji Shinya, Osamu Yokokouji, Takashi Miyajima, Katsutoshi Machida 1999-06-22
5682177 Driving method of driving a liquid crystal display element Takeshi Kuwata, Temkar N. Ruckmongathan, Yutaka Nakagawa, Hiroshi Hasebe, Takashi Yamashita +2 more 1997-10-28
5663463 Difluoroethylene compounds and liquid crystal compositions containing them Seiji Shinya, Osamu Yokokouji, Takashi Miyajima, Katsutoshi Machida 1997-09-02
5596344 Driving method of driving a liquid crystal display element Takeshi Kuwata, Temkar N. Ruckmongathan, Yutaka Nakagawa, Hiroshi Hasebe, Takashi Yamashita +2 more 1997-01-21
5548302 Method of driving display element and its driving device Takeshi Kuwata, Temkar N. Ruckmongathan, Yutaka Nakagawa, Akira Nakazawa, Takanori Ohnishi +1 more 1996-08-20
5516949 Difluoroethylene compounds and liquid crystal compositions containing them Seiji Shinya, Osamu Yokokouji, Takashi Miyajima, Katsutoshi Machida 1996-05-14
5489919 Driving method of driving a liquid crystal display element Takeshi Kuwata, Temkar N. Ruckmongathan, Yutaka Nakagawa, Hiroshi Hasebe, Takashi Yamashita +2 more 1996-02-06
5419851 Difluoro-derivative compounds and liquid crystal compositions containing them Osamu Yokokoji, Jun Irisawa 1995-05-30
5262881 Driving method of driving a liquid crystal display element Takeshi Kuwata, Temkar N. Ruckmongathan, Yutaka Nakagawa, Hiroshi Hasebe, Takashi Yamashita +2 more 1993-11-16