KA

Keiichiro Ashizawa

HI Hitachi: 65 patents #133 of 28,497Top 1%
PA Panasonic: 11 patents #2,326 of 21,108Top 15%
HD Hitachi Displays: 9 patents #105 of 752Top 15%
JD Japan Display: 7 patents #421 of 1,204Top 35%
HI Hiatchi: 1 patents #1 of 84Top 2%
📍 Mobara, JP: #5 of 731 inventorsTop 1%
Overall (All Time): #21,758 of 4,157,543Top 1%
82
Patents All Time

Issued Patents All Time

Showing 76–82 of 82 patents

Patent #TitleCo-InventorsDate
5929958 Liquid crystal display device with wide viewing angle characteristics Masuyuki Ohta, Kazuhiko Yanagawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Ohe +2 more 1999-07-27
5870160 In-plane field type liquid crystal display device comprising a structure which is prevented from charging with electricity Kazuhiko Yanagawa, Masuyuki Ohta, Kazuhiro Ogawa, Masahiro Yanai, Nobutake Konishi +3 more 1999-02-09
5760856 In-plane field type liquid crystal display device with light shielding pattern suitable for high aperture ratio Kazuhiko Yanagawa, Masuyuki Ohta, Kazuhiro Ogawa, Katsumi Kondo 1998-06-02
5760857 In-plane field type liquid crystal display device with delta arrangement of three primary color pixels Kazuhiko Yanagawa, Masuyuki Ohta, Kazuhiro Ogawa, Masahiro Yanai 1998-06-02
5754266 Liquid crystal display device with wide viewing angle characteristics Masuyuki Ohta, Kazuhiko Yanagawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Ohe +2 more 1998-05-19
5734451 Active matrix type liquid crystal display device with specific configurations of the reference electrode and/or the video signal line Kazuhiko Yanagawa, Masuyuki Ohta, Kazuhiro Ogawa, Minoru Hoshino 1998-03-31
5694186 Color liquid crystal display device having special relationship between its isochromatic viewing angle and half-brightness angle Kazuhiko Yanagawa, Masayuki Ohta, Kazuhiro Ogawa, Kiyoshige Kinukawa 1997-12-02