HH

Haruhisa Hirakawa

FK Futaba Denshi Kogyo K.K.: 6 patents #20 of 173Top 15%
📍 Mobara, JP: #202 of 731 inventorsTop 30%
Overall (All Time): #886,747 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5965978 Field emission display device with improved dielectric breakdown characteristic Takao Kishino, Kenichi Furumata 1999-10-12
5955850 Field emission display device Satoshi Yamaguchi, Kazuhiko Tsuburaya, Masaharu Tomita, Tatsuo Yamamura 1999-09-21
5606462 Color filter and fluorescent display device having color filters incorporated therein Yoshihisa Tsuruoka, Yoshinari Okamoto, Eiji Sato 1997-02-25
5559397 Color filter and fluorescent display device having color filters incorporated therein Yoshihisa Tsuruoka, Yoshinari Okamoto, Eiji Sato 1996-09-24
5543685 Flourescent display device having a protective film interposed between color filters and anode electrodes Yoshinari Okamoto, Yoshihisa Tsuruoka, Eiji Sato 1996-08-06
5387838 Fluorescent display device with high duty ratio Yoshihisa Tsuruoka, Eiji Sato 1995-02-07