KK

Keiji Kashima

Dai Nippon Printing Co.: 59 patents #5 of 2,222Top 1%
TO Tosoh: 11 patents #36 of 1,042Top 4%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
📍 Tokyo, MO: #31 of 223 inventorsTop 15%
Overall (All Time): #28,483 of 4,157,543Top 1%
71
Patents All Time

Issued Patents All Time

Showing 1–25 of 71 patents

Patent #TitleCo-InventorsDate
12393117 Marker, method for manufacturing marker, and detection target Tadashi Furukawa, Koujiro Ookawa, Yukio Taniguchi, Hideaki Fujisaki 2025-08-19
10890777 Electromagnetic wave reflecting member Takashi Kuroda, Satoru Hamada 2021-01-12
9869809 Backlight unit, liquid-crystal display apparatus, and stacked structure Yasuki Suzuura, Hiroshi Yamamoto, Takashi Kuroda 2018-01-16
9720154 Patterned phase difference film and method for manufacturing same Yuya Inomata, Kumiko KAMBARA, Masanori Fukuda, Hideki Usuki, Kazuki Yamada 2017-08-01
9638848 Patterned phase difference film and method for manufacturing same Yuya Inomata, Kumiko KAMBARA, Masanori Fukuda, Hideki Usuki, Kazuki Yamada 2017-05-02
9551824 Light guide plate, method for producing light guide plate, surface light source device, and liquid crystal display device Hiroshi Yamamoto, Hiroshi Sekiguchi, Masahiro Goto 2017-01-24
9217925 Method for producing pattern phase difference film, pattern phase difference film, and image display device Hiroyuki Nishimura, Yoshihide Nakao, Tomoya Kawashima, Kazuki Yamada 2015-12-22
8968836 Electromagnetic wave reflective film and method for producing same Satoru Hamada, Shoji Takeshige 2015-03-03
8871410 Method for producing pattern phase difference film Hiroyuki Nishimura, Yoshihide Nakao, Tomoya Kawashima 2014-10-28
8659711 Phase difference layer laminated body for three dimensional liquid crystal display device and manufacturing method thereof 2014-02-25
8659738 Phase difference layer laminated body for three dimensional liquid crystal display device and manufacturing method thereof 2014-02-25
8599334 Polarizing plate protection film, polarizing plate, and liquid crystal display device Takashi Kuroda, Satoru Hamada 2013-12-03
8531627 Optical rotation plate and liquid crystal display device using the same Satoru Hamada, Takashi Kuroda, Hirofumi Yumoto 2013-09-10
8355203 Optical functional film, retardation film, composition for forming optical functional layer and producing method of optical functional film Kenji Shirai, Takashi Kuroda, Takeshi Haritani 2013-01-15
8305524 Liquid crystal display polarizing plate, method for producing liquid crystal display polarizing plate, and liquid crystal display Yusuke Hiruma, Shoji Takeshige 2012-11-06
8124198 Retardation film and method for producing the same, optical functional film, polarizing film, and display device Takeshi Haritani, Kenji Shirai 2012-02-28
8064136 Optical functional film, retardation film, composition for forming optical functional layer and producing method of optical functional film Kenji Shirai, Takashi Kuroda, Takeshi Haritani 2011-11-22
7932971 Liquid-crystal display 2011-04-26
7859622 Retardation layer and liquid crystal display apparatus using the same Takashi Kuroda 2010-12-28
7719643 Retardation layer and liquid crystal display apparatus using the same Takashi Kuroda 2010-05-18
7623201 Liquid-crystal display 2009-11-24
7508474 Laminated retardation layer, its fabrication process, and liquid crystal display incorporating the same 2009-03-24
RE40655 Polarization light splitting film, backlight system and liquid crystal display having particular diffusion layer under optical rotational selection layer Fumihiro Arakawa 2009-03-10
7411645 Phase difference layer laminated body and manufacturing method thereof 2008-08-12
7405780 Liquid-crystal display 2008-07-29