TK

Tetsuo Kumazawa

HI Hitachi: 18 patents #2,067 of 28,497Top 8%
HC Hitachi Chemical Company: 2 patents #701 of 1,946Top 40%
HC Hitachi Cable: 1 patents #530 of 1,086Top 50%
Overall (All Time): #241,764 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7198962 Semiconductor device and manufacturing method thereof including a probe test step and a burn-in test step Ryuji Kohno, Makoto Kitano, Akihiko Ariga, Yuji Wada, Naoto Ban +7 more 2007-04-03
6566150 Semiconductor device and manufacturing method thereof including a probe test step and a burn-in test step Ryuji Kohno, Makoto Kitano, Akihiko Ariga, Yuji Wada, Naoto Ban +7 more 2003-05-20
6455335 Semiconductor device and manufacturing method thereof including a probe test step and a burn-in test step Ryuji Kohno, Makoto Kitano, Akihiko Ariga, Yuji Wada, Naoto Ban +7 more 2002-09-24
6297073 Semiconductor device Makoto Kitano, Ryuji Kohno, Naotaka Tanaka, Akihiro Yaguchi, Ichiro Anjoh +5 more 2001-10-02
6197603 Semiconductor device and manufacturing method thereof including a probe test step and a burn-in test step Ryuji Kohno, Makoto Kitano, Akihiko Ariga, Yuji Wada, Naoto Ban +7 more 2001-03-06
6130112 Semiconductor device Makoto Kitano, Ryuji Kohno, Naotaka Tanaka, Akihiro Yaguchi, Ichiro Anjoh +5 more 2000-10-10
6049128 Semiconductor device Makoto Kitano, Ryuji Kohno, Naotaka Tanaka, Akihiro Yaguchi, Ichiro Anjoh +5 more 2000-04-11
5837567 Lead frame and semiconductor device Naotaka Tanaka, Akihiro Yaguchi, Makoto Kitano, Tatsuya Nagata, Atsushi Nakamura +2 more 1998-11-17
5671316 Connecting structure of optical fiber to optical waveguide Toshiya Yuhara, Hisao Iitsuka, Kazuyuki Fukuda, Makoto Shimaoka 1997-09-23
5637914 Lead frame and semiconductor device encapsulated by resin Naotaka Tanaka, Akihiro Yaguchi, Makoto Kitano, Tatsuya Nagata, Atsushi Nakamura +2 more 1997-06-10
5608265 Encapsulated semiconductor device package having holes for electrically conductive material Makoto Kitano, Asao Nishimura, Akihiro Yaguchi, Nae Yoneda, Ryuji Kohno +1 more 1997-03-04
5569960 Electronic component, electronic component assembly and electronic component unit Makoto Kitano, Akihiro Yaguchi, Ryuji Kohno, Naotaka Tanaka, Nae Yoneda +1 more 1996-10-29
5195155 Optical coupling apparatus and manufacturing method of the same, and lens holder Makoto Shimaoka, Yasutoshi Yagiu, Atsushi Sasayama 1993-03-16
5046798 Semiconductor light emitting device and apparatus using the same Yasutoshi Yagiu, Makoto Shimaoka, Kunio Aiki 1991-09-10
4880290 Opto-electronic device and method for producing the device Makoto Shimaoka, Kazuyuki Fukuda, Eiichi Adachi 1989-11-14
4528223 Composite fibrous product Hiroaki Doi, Yasuo Miyadera, Atsushi Fujioka, Tadashi Nagai 1985-07-09
4446191 Laminates comprising prepregs metal clad Yasuo Miyadera, Atsushi Fujioka 1984-05-01
4335329 Mask support for shadow mask assembly Kenichi Fukuzawa 1982-06-15
4251746 Direct-heated cathode structure Takao Kawamura, Yukihiro Izumida, Hiroshi Fukushima, Takeo Takemoto, Masaru Nakazawa 1981-02-17