RT

Ritsuji Toba

HI Hitachi: 6 patents #6,582 of 28,497Top 25%
HC Hitachi Chemical Company: 1 patents #1,071 of 1,946Top 60%
📍 Hadano, JP: #190 of 1,025 inventorsTop 20%
Overall (All Time): #892,787 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5139923 Method for improving adhesion of a resist layer to a metallic layer and electrolessly plating a wiring pattern thereon Kanji Murakami, Mineo Kawamoto 1992-08-18
5045353 Method for treating interior surfaces of holes and apparatus therefor Yuuzi Takada, Satoshi Yoshitomi, Nobuaki Ooki 1991-09-03
5028513 Process for producing printed circuit board Kanji Murakami, Mineo Kawamoto, Akio Tadokoro, Haruo Akahoshi, Toshikazu Narahara +3 more 1991-07-02
4865888 Process for electroless copper plating and apparatus used therefor Haruo Akahoshi, Kanji Murakami, Mineo Kawamoto, Akio Takokoro, Toyofusa Yoshimura 1989-09-12
4781943 Process for pretreatment before plating through-holes of printed circuit boards Tsunehumi Mutoo 1988-11-01
4642161 Method of bonding copper and resin Haruo Akahoshi, Kanji Murakami, Motoyo Wajima, Kiyonori Kogawa, Takeshi Shimazaki 1987-02-10