YA

Yoshinobu Akamatsu

NT Ntn: 14 patents #110 of 1,364Top 9%
NC Ntn Toyo Bearing Co.: 1 patents #30 of 90Top 35%
CC Chugoku Electric Power Co.: 1 patents #53 of 143Top 40%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #300,131 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
8307931 Sensor-equipped axle unit having a built-in motor of in-wheel type 2012-11-13
8104968 Rolling contact bearing 2012-01-31
7918606 Rolling bearing Masatsugu Mori, Takuji Kobayashi, Sun-Woo Lee 2011-04-05
7877215 Evaluation method for rolling bearing part 2011-01-25
7819587 Lubricating device for rolling bearing Masatsugu Mori 2010-10-26
7813906 Method of predicting residual service life for rolling bearings and a device for predicting residual service life for rolling bearings Isao Shiromaru, Makoto Tanaka, Yoji Nagayasu, Shingo Boda, Takuzo Iwatsubo 2010-10-12
6981797 Hydrodynamic bearing unit Natsuhiko Mori, Kazuo Okamura 2006-01-03
6712514 Hydrodynamic bearing unit Natsuhiko Mori, Kazuo Okamura 2004-03-30
6417143 Rolling bearings and greases for the same Hidenobu Mikami, Koya Ohira, Masaki Egami, Takashi Yasunishi 2002-07-09
6332717 Rolling bearing for supporting rotary shaft of disk memory device Kouya Oohira, Masaki Egami 2001-12-25
5967672 Machine parts making rolling or sliding surfaces formed with discontinuous grooves Fuyuki Ito, Shiro DEGUCHI 1999-10-19
5915844 Grease-lubricated rolling bearings Toshikazu Nanbu 1999-06-29
5642947 Balls for ball bearing Kikuo Maeda, Katsuyoshi Yoshimura, Katsunori Makino 1997-07-01
5641038 Bearing for use in compressor for air conditioner 1997-06-24
5397188 Rolling member Noriyoshi Yoshizuka, Kazuyoshi Harimoto 1995-03-14
4893387 Roller elements for roller bearing Morikatu Kotani, Toshihide Goto, Kenji Hibi, Toshihiko Matsushima 1990-01-16