YM

Youichi Matsumoto

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
Nsk: 5 patents #309 of 1,559Top 20%
NC Nippon Seiko Co.: 3 patents #40 of 315Top 15%
HE Hitachi Vlsi Engineering: 2 patents #292 of 666Top 45%
NC Nippon Electric Co.: 1 patents #251 of 792Top 35%
Overall (All Time): #342,780 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
RE49737 Ball bearing Takeshi Maejima, Takanori Tanaka 2023-11-28
10389194 Permanent magnet electrical rotating machine with protection members arranged between permanent magnets and rotor cores Mamoru Kimura, Masahiro Hori, Tetsuo Fujigaki, Motonobu IIDUKA, Yoshihiro Yasui +2 more 2019-08-20
9935512 Permanent magnet rotating electrical machine Mamoru Kimura, Masahiro Hori, Tetsuo Fujigaki, Motonobu IIDUKA 2018-04-03
8777489 Ball bearing and hybrid vehicle transmission Takeshi Maejima, Takanori Tanaka, Kinji Yukawa 2014-07-15
8523450 Ball bearing and hybrid vehicle transmission Takeshi Maejima, Takanori Tanaka, Kinji Yukawa 2013-09-03
7305330 Life predicting method for rolling bearing, life predicting device, rolling bearing selecting device using life predicting device, program and environment coefficient determining method Seigou Urakami, Yasuo Murakami 2007-12-04
7137741 Rolling bearing Shinji Fujita, Yasuo Murakami, Nobuaki Mitamura, Shigeru Okita 2006-11-21
4991442 Method and apparatus for detecting cracks in bearings 1991-02-12
4939386 Semiconductor integrated circuit device with MISFETS using two drain impurities Ryuuji Shibata, Ken Uchida, Toshifumi Takeda 1990-07-03
4930909 Rolling bearing Yasuo Murakami, Kazuhiro Uemura 1990-06-05
4912674 Read-only memory Ryuuji Shibata, Isamu Kobayashi, Satoshi Meguro, Kouichi Nagasawa, Hideo Meguro +4 more 1990-03-27
4904094 Ball-and-roller bearing system Kyozaburo Furumura, Yasuo Murakami, Kenji Takei, Takaaki Shiratani, Soji Nishida 1990-02-27
4805143 Read-only memory Ryuuji Shibata, Isamu Kobayashi, Satoshi Meguro, Kouichi Nagasawa, Hideo Meguro +4 more 1989-02-14
4338574 Carrier recovering circuit for phase modulated signal Toshio Fujita, Yoshimi Tagashira 1982-07-06