KO

Keigo Obata

DC Daiwa Fine Chemicals Co.: 10 patents #1 of 33Top 4%
IC Ishihara Chemical Co.: 5 patents #2 of 58Top 4%
HI Harima Chemicals, Incorporated: 2 patents #40 of 188Top 25%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
NC Nippon Paint Automotive Coatings Co.: 1 patents #28 of 107Top 30%
📍 Himeji, JP: #114 of 1,500 inventorsTop 8%
Overall (All Time): #288,455 of 4,157,543Top 7%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
11945962 Cationic electrodeposition coating composition and method for forming cured electrodeposition coating film Masayuki Kotani, Yuko HASEGAWA, Yasuyuki FURUYA, Keisuke Tsutsui, Hiroki Arai +1 more 2024-04-02
7938948 Silver and silver alloy plating bath Kiyotaka Tsuji, Tetsuji Nishikawa, Takao Takeuchi, Hidemi Nawafune 2011-05-10
7669752 Flux for soldering and circuit board Kazuki Ikeda, Shunsuke Ishikawa, Takaaki Anada, Takao Takeuchi, Naoya Inoue 2010-03-02
7628903 Silver and silver alloy plating bath Kiyotaka Tsuji, Tetsuji Nishikawa, Takao Takeuchi, Hidemi Nawafune 2009-12-08
7166152 Pretreatment solution for providing catalyst for electroless plating, pretreatment method using the solution, and electroless plated film and/or plated object produced by use of the method Yoshiaki Okuhama, Masakazu Yoshimoto, Kim Dong Hyun, Shingo Kitamura, Seiichiro Nakao +2 more 2007-01-23
7056448 Method for forming circuit pattern Yoshiaki Okuhama, Masakazu Yoshimoto, Shingo Kitamura, Seiichiro Nakao, Osamu Masuyama +1 more 2006-06-06
6923875 Solder precipitating composition Kazuki Ikeda, Hiroshi Tanaka, Hisao Irie, Takao Takeuchi, Naoya Inoue 2005-08-02
6852210 Plating method and plating bath precursor used therefor Dong Hyun Kim, Takao Takeuchi, Seiichiro Nakao, Shinji Inazawa, Ayao Kariya +2 more 2005-02-08
6607653 Plating bath and process for depositing alloy containing tin and copper Kiyotaka Tsuji, Takao Takeuchi, Hidemi Nawafune, Tetsuji Nishikawa 2003-08-19
6338787 Redox system electroless plating method Dong Hyun Kim, Takao Takeuchi, Seiichiro Nakao, Shinji Inazawa, Ayao Kariya +2 more 2002-01-15
6235093 Aqueous solutions for obtaining noble metals by chemical reductive deposition Yoshiaki Okuhama, Takao Takeuchi, Yasuhito Kohashi, Hidemi Nawafune 2001-05-22
6183545 Aqueous solutions for obtaining metals by reductive deposition Yoshiaki Okuhama, Takao Takeuchi, Masakazu Yoshimoto, Shigeru Takatani, Emiko Tanaka +8 more 2001-02-06
4992154 Brush for electrolytic treatment Yoshiaki Ida 1991-02-12
4673470 Tin, lead, or tin-lead alloy plating bath Nobuyasu Dohi, Yoshiaki Okuhama, Seishi Masaki, Yukiyoshi Okada, Masakazu Yoshimoto 1987-06-16
4555314 Tin-lead alloy plating bath Nobuyasu Dohi, Yoshiaki Okuhama, Seishi Masaki, Yukiyoshi Okada, Tadashi Yoshida 1985-11-26
4459185 Tin, lead, and tin-lead alloy plating baths Nobuyasu Dohi, Yoshiaki Okuhama, Seishi Masaki, Yukiyoshi Okada, Masakazu Yoshimoto 1984-07-10