MK

Masumi Koizumi

OC Oki Electric Industry Co.: 8 patents #196 of 2,807Top 7%
OD Oki Data: 7 patents #96 of 635Top 20%
DL Diafoil Company, Limited: 4 patents #11 of 52Top 25%
Overall (All Time): #240,790 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDate
8130253 Composite semiconductor device, print head and image forming apparatus Kazuya Ohkawa, Shinya JYUMONJI, Masumi Taninaka, Hiroshi Hamano 2012-03-06
7847304 LED array, LED head and image recording apparatus Masumi Taninaka, Hiroshi Hamano 2010-12-07
6858875 Light-emitting-element array Hiroshi Hamano, Masumi Taninaka, Masaharu Nobori 2005-02-22
6781246 Semiconductor array device with single interconnection layer Hiroyuki Fujiwara, Masumi Taninaka, Susumu Ozawa 2004-08-24
6541796 Opto-electronic device with self-aligned ohmic contact layer Masaharu Nobori, Hiroyuki Fujiwara 2003-04-01
6297842 Organic electroluminescent light-emitting array and optical head assembly Yichao Jiang, Tsutomu Nomoto, Ichimatsu Abiko 2001-10-02
6291328 Opto-electronic device with self-aligned ohmic contact layer Masaharu Nobori, Hiroyuki Fujiwara 2001-09-18
6023104 LED array alignment mark, method and mask for forming same, and LED array alignment method Yukio Nakamura, Masaharu Nobori, Aya Yamanaka 2000-02-08
5955748 End face light emitting type light emitting diode Yukio Nakamura, Mitsuhiko Ogihara, Masumi Taninaka, Takao Kusano, Hiroyuki Fujiwara +3 more 1999-09-21
5943586 LED array alignment mark, method and mask for forming same, and LED array alignment method Yukio Nakamura, Masaharu Nobori, Aya Yamanaka 1999-08-24
5869848 End face light-emitting-type LED, end face light-emitting-type LED array and methods of manufacturing them Masaharu Nobori, Hiroyuki Fujiwara, Aya Yamanaka, Makoto Ishimaru, Yukio Nakamura 1999-02-09
5866439 Method of fabricating an end face light emitting type light-emitting diode and a light-emitting diode array device Masaharu Nobori, Hiroyuki Fujiwara, Makoto Ishimaru 1999-02-02
5700714 Diffusion mask and fabrication method for forming pn-junction elements in a compound semiconductor substrate Mitsuhiko Ogihara, Yukio Nakamura, Masumi Taninaka 1997-12-23
RE34727 Low-shrinkage polyester film and preparation thereof Shigeo Utsumi, Kichinojo Tomitaka, Tomoyuki Kotani 1994-09-13
5225364 Method of fabricating a thin-film transistor matrix for an active matrix display panel Tsutomu Nomoto, Akihiko Nishiki 1993-07-06
5093064 Low-shrinkage polyester film and preparation thereof Shigeo Utsumi, Kichinojo Tomitaka, Tomoyuki Kotani 1992-03-03
5087526 Biaxially oriented polyester film for use in floppy disc Kichinojo Tomitaka 1992-02-11
5070379 Thin-film transistor matrix for active matrix display panel with alloy electrodes Tsutomu Nomoto, Akihiko Nishiki 1991-12-03
4960636 Biaxially oriented polyester film for floppy disk Kichinojo Tomitaka, Shigeo Utsumi 1990-10-02