Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
EM

Eiichi Murakami — 64 Patents

Canon: 19 patents #3,464 of 19,416Top 20%
Hitachi: 16 patents #2,438 of 28,497Top 9%
ACAtsuden Co.: 8 patents #1 of 4Top 25%
RTRenesas Technology: 6 patents #492 of 3,337Top 15%
RERenesas Electronics: 4 patents #1,016 of 4,529Top 25%
TLTeijin Limited: 2 patents #572 of 1,631Top 40%
NKNitto Kogyo: 1 patents #22 of 53Top 45%
ATAgency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
Overall (All Time): #34,778 of 4,157,543Top 1%
64 Patents All Time

Issued Patents All Time

Showing 51–64 of 64 patents

Patent #TitleCo-InventorsDate
5241197 Transistor provided with strained germanium layer Kiyokazu Nakagawa, Takashi Ohshima, Hiroyuki Eto, Masanobu Miyao 1993-08-31
5083329 Apparatus for effecting massage with water stream 1992-01-28
5066355 Method of producing hetero structure Masanobu Miyao, Kiyokazu Nakagawa, Kiyonori Ohyu, Takashi Ohshima 1991-11-19
5017798 Surface examining apparatus for detecting the presence of foreign particles on two or more surfaces Michio Kohno, Akiyoshi Suzuki 1991-05-21
4984048 Semiconductor device with buried side contact Kazuhiko Sagara, Tokuo Kure, Tohru Nakamura, Masanobu Miyao, Masao Kondo +2 more 1991-01-08
4934064 Alignment method in a wafer prober Nobuhito Yamaguchi, Mitsuya Sato, Takao Ukaji, Taro Ohmori 1990-06-19
4929893 Wafer prober Mitsuya Sato, Takao Ukaji, Nobuhito Yamaguchi, Taro Ohmori 1990-05-29
4903352 Fluid flow massaging apparatus 1990-02-27
4886975 Surface examining apparatus for detecting the presence of foreign particles on two or more surfaces Michio Kohno, Akiyoshi Suzuki 1989-12-12
4808546 SOI process for forming a thin film transistor using solid phase epitaxy Masahiro Moniwa, Masanobu Miyao, Shoji Shukuri, Terunori Warabisako, Masao Tamura +5 more 1989-02-28
4795911 Surface examining apparatus for detecting the presence of foreign particles on the surface Michio Kohno, Akiyoshi Suzuki 1989-01-03
4780205 Permselective hollow fiber membrane, process for the preparation thereof, method and apparatus for plasma components separation Kimihiko Matsuzawa, Eiji Masunaga 1988-10-25
4683838 Plasma treatment system Shin Kimura, Terunori Warabisako, Kiyoshi Miyake, Hideo Sunami 1987-08-04
4459210 Porous membrane Ryozo Hasegawa, Kimihiko Matzuzawa 1984-07-10