RK

Ryoichi Kajiwara

HI Hitachi: 18 patents #2,067 of 28,497Top 8%
RE Renesas Electronics: 9 patents #397 of 4,529Top 9%
HS Hitachi Tohbu Semiconductor: 8 patents #12 of 223Top 6%
RT Renesas Technology: 5 patents #592 of 3,337Top 20%
HC Hitachi Cable: 1 patents #530 of 1,086Top 50%
RS Renesas Eastern Japan Semiconductor: 1 patents #25 of 82Top 35%
HS Hitachi Automotive Systems: 1 patents #965 of 1,636Top 60%
Overall (All Time): #108,312 of 4,157,543Top 3%
33
Patents All Time

Issued Patents All Time

Showing 26–33 of 33 patents

Patent #TitleCo-InventorsDate
6569764 Method of manufacturing a semiconductor package by attaching a lead frame to a semiconductor chip via projecting electrodes and an insulating sheet of resin material Toshinori Hirashima, Yasushi Takahashi, Masahiro Koizumi, Munehisa Kishimoto 2003-05-27
5884835 Ultrasonic bonding method and ultrasonic bonding apparatus Toshiyuki Takahashi, Kazuya Takahashi, Masahiro Koizumi, Hiroshi Watanabe, Yukiharu Akiyama 1999-03-23
5431324 Ultrasonic bonding apparatus and quality monitoring method Mituo Katou, Kazuya Takahashi, Minoru Maruta, Tokiyuki Seto, Kunihiro Tsubosaki 1995-07-11
5323952 Bonding apparatus and testing apparatus of a bonded portion Mituo Kato, Kazuya Takahashi, Setuo Sekine, Tokiyuki Seto 1994-06-28
4996589 Semiconductor module and cooling device of the same Takao Funamoto, Mituo Kato, Hiroshi Wachi, Tomohiko Shida 1991-02-26
4809058 Integrated circuit device Takao Funamoto, Mituo Katou, Takeshi Matsuzaka, Tomohiko Shida, Hiroshi Wachi +5 more 1989-02-28
4740866 Sealed-type liquid cooling device with expandable bellow for semiconductor chips Takao Funamoto, Mitsuo Katoo, Tomohiko Shida, Takeshi Matsuzaka, Hiroshi Wachi +1 more 1988-04-26
4454408 Method for controlling arc welding and apparatus therefor Satoshi Kokura, Yuzo Kozono, Akira Onuma 1984-06-12