KT

Kiyoaki Tsumura

Mitsubishi Electric: 15 patents #1,633 of 25,717Top 7%
MC Mitsumi Electric Co.: 1 patents #527 of 935Top 60%
📍 Itami, JP: #205 of 1,436 inventorsTop 15%
Overall (All Time): #327,271 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
6907053 Semiconductor laser device, and optical pickup apparatus using the device Kenji Ohgiyama, Koji Yamashita, Toshio Takeuchi, Susumu Ishida, Kenji Kan 2005-06-14
6288376 Method and apparatus for melting a bump by induction heating 2001-09-11
RE35496 Semiconductor device and method of producing the same Ken Yamamura, Naoto Ueda, Kazunari Michii, Hitoshi Fujimoto, Hitoshi Sasaki +1 more 1997-04-29
5565378 Process of passivating a semiconductor device bonding pad by immersion in O.sub.2 or O.sub.3 solution Shigeru Harada, Kimio Hagi 1996-10-15
5334803 Semiconductor device and method of producing the same Ken Yamamura, Naoto Ueda, Kazunari Michii, Hitoshi Fujimoto, Hitoshi Sasaki +1 more 1994-08-02
5293066 Semiconductor device mounting structure including lead frame and lead plate 1994-03-08
5229646 Semiconductor device with a copper wires ball bonded to aluminum electrodes 1993-07-20
5124277 Method of ball bonding to non-wire bonded electrodes of semiconductor devices 1992-06-23
5116783 Method of producing semiconductor device 1992-05-26
5093712 Resin-sealed semiconductor device Yoshihiro Matsunaga, Tadao Nishimori, Hiromasa Matsuoka, Kozo Shimamoto 1992-03-03
5023697 Semiconductor device with copper wire ball bonding 1991-06-11
5003373 Structure of electrode junction for semiconductor device Hitoshi Fujimoto 1991-03-26
4984056 Semiconductor integrated circuit device Hitoshi Fujimoto 1991-01-08
4886200 Capillary tip for bonding a wire 1989-12-12
4821944 Method for bonding a wire and bonding apparatus 1989-04-18