AK

Akira Kumazawa

TC Tokyo Ohka Kogyo Co.: 10 patents #121 of 684Top 20%
SC Showa Denko Materials Co.: 1 patents #135 of 270Top 50%
Overall (All Time): #454,351 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
11187294 Friction member, friction material composition, friction material, and vehicle 2021-11-30
10093815 Surface treatment agent and surface treatment method Daijiro Mori 2018-10-09
9868090 Process for preparing chemical liquid of silylating agent and surface treatment method Kiyoshi Ishikawa, Daijiro Mori 2018-01-16
9796879 Film-forming material Daijiro Mori, Mai Sugawara 2017-10-24
9703202 Surface treatment process and surface treatment liquid Daijiro Mori 2017-07-11
8623236 Titanium nitride-stripping liquid, and method for stripping titanium nitride coating film Takahiro Eto, Takayuki Haraguchi 2014-01-07
8206509 Cleaning liquid for lithography and method for forming wiring Takahiro Eto, Takuya Ohhashi, Masaru Takahama, Daijiro Mori 2012-06-26
7563146 Unbaked laminate for producing front plate of plasma display device, and method for producing front plate of plasma display device Hitoshi Setsuda, Kiminori Oshio, Hiroyuki Obiya 2009-07-21
7554270 Composition for dielectric of plasma display panel, laminate for dielectric, and method for forming the dielectric Hitoshi Setsuda, Kiminori Oshio, Hiroyuki Obiya 2009-06-30
6897011 Photosensitive composition for sandblasting and photosensitive film using the same Ryuma Mizusawa, Syunji Nakazato, Hiroyuki Obiya 2005-05-24
6506540 Photopolymerizable composition Shinichiro Ishino, Hiroyuki Obiya, Kenji Tazawa 2003-01-14