TN

Tetsuya Nakatsuka

HI Hitachi: 17 patents #2,231 of 28,497Top 8%
RE Renesas Electronics: 3 patents #1,322 of 4,529Top 30%
RT Renesas Technology: 3 patents #990 of 3,337Top 30%
HB Hgst Netherlands, B.V.: 1 patents #510 of 972Top 55%
HG HGST: 1 patents #1,032 of 1,677Top 65%
Overall (All Time): #162,218 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
11244877 Sealing structure and manufacturing method thereof Shinya Kawakita, Susumu Ishida, Isamu Yoshida, Osamu Ikeda 2022-02-08
8907475 Pb-free solder-connected structure Hanae Shimokawa, Tasao Soga, Hiroaki Okudaira, Toshiharu Ishida, Yoshiharu Inaba +1 more 2014-12-09
8699187 Manufacturing method for a head-stack assembly, apparatus for interconnection of the head-stack assembly, and head-stack assembly Tetsuya Nakamura, Takahiro Sakai, Masahiko Katoh, Yasushi Inoue, Satoshi Kaneko +1 more 2014-04-15
8503189 Pb-free solder-connected structure and electronic device Hanae Shimokawa, Tasao Soga, Hiroaki Okudaira, Toshiharu Ishida, Yoshiharu Inaba +1 more 2013-08-06
8179631 Magnetic disk drive feed-through solder connection with solder fillet formed inside base and protruding outside base Akihiko Aoyagi, Teruhiro Nakamiya, Takashi Kouno, Hitoshi Shindo 2012-05-15
8020747 Soldering method and soldering apparatus Masato Nakamura 2011-09-20
8022551 Solder composition for electronic devices Tasao Soga, Hanae Shimokawa, Kazuma Miura, Mikio Negishi, Hirokazu Nakajima +1 more 2011-09-20
7911062 Electronic component with varying rigidity leads using Pb-free solder Koji Serizawa 2011-03-22
7722962 Solder foil, semiconductor device and electronic device Tasao Soga, Hanae Hata, Toshiharu Ishida, Masahide Okamoto, Kazuma Miura 2010-05-25
7709746 Pb-free solder-connected structure and electronic device Hanae Shimokawa, Tasao Soga, Hiroaki Okudaira, Toshiharu Ishida, Yoshiharu Inaba +1 more 2010-05-04
7259465 Semiconductor device with lead-free solder Tasao Soga, Hanae Shimokawa, Kazuma Miura, Mikio Negishi, Hirokazu Nakajima +1 more 2007-08-21
7145236 Semiconductor device having solder bumps reliably reflow solderable Kazuma Miura, Hanae Shimokawa, Koji Serizawa, Tasao Soga 2006-12-05
7131566 Packaging method using lead-free solder Masahide Okamoto, Tomoyuki Ohmura 2006-11-07
7075183 Electronic device Tasao Soga, Hanae Shimokawa, Kazuma Miura, Mikio Negishi, Hirokazu Nakajima +1 more 2006-07-11
7048173 Wave soldering method using lead-free solder, apparatus therefor, and wave-soldered assembly Masahide Okamoto, Tomoyuki Ohmura, Asao Nakano 2006-05-23
7013564 Method of producing an electronic device having a PB free solder connection Hanae Shimokawa, Tasao Soga, Hiroaki Okudaira, Toshiharu Ishida, Yoshiharu Inaba +1 more 2006-03-21
6960396 Pb-free solder-connected structure and electronic device Hanae Shimokawa, Tasao Soga, Hiroaki Okudaira, Toshiharu Ishida, Yoshiharu Inaba +1 more 2005-11-01
6872465 Solder Tasao Soga, Hanae Hata, Mikio Negishi, Hirokazu Nakajima, Tsuneo Endoh 2005-03-29
6774490 Electronic device Tasao Soga, Hanae Shimokawa, Masato Nakamura, Yuji Fujita, Toshiharu Ishida +4 more 2004-08-10
6585149 Packaging method using lead-free solder Masahide Okamoto, Tomoyuki Ohmura 2003-07-01
6563225 Product using Zn-Al alloy solder Tasao Soga, Toshiharu Ishida, Kazuma Miura, Hanae Hata, Masahide Okamoto 2003-05-13
6555052 Electron device and semiconductor device Tasao Soga, Hanae Shimokawa, Masato Nakamura, Yuji Fujita, Toshiharu Ishida +4 more 2003-04-29
6486411 Semiconductor module having solder bumps and solder portions with different materials and compositions and circuit substrate Kazuma Miura, Hanae Shimokawa, Koji Serizawa, Tasao Soga 2002-11-26
6204490 Method and apparatus of manufacturing an electronic circuit board Tasao Soga, Toshiharu Ishida, Hanae Shimokawa, Koji Serizawa, Yasuo Amano +2 more 2001-03-20
5942185 Lead-free solder used for connecting electronic parts on organic substrate and electronic products made using same Tasao Soga, Hanae Shimokawa, Kenichi Yamamoto, Masahide Harada, Yuuji Ochiai +1 more 1999-08-24