TK

Takayuki Kawamura

NT Ntn: 22 patents #60 of 1,364Top 5%
II Ichikoh Industries: 7 patents #10 of 256Top 4%
Sumitomo Electric Industries: 4 patents #6,367 of 21,551Top 30%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
KC Kyodo Yushi Co.: 1 patents #63 of 191Top 35%
CS Csk: 1 patents #12 of 28Top 45%
The Dow Chemical: 1 patents #2,215 of 4,115Top 55%
AS Asahi-Dow: 1 patents #40 of 93Top 45%
Overall (All Time): #85,097 of 4,157,543Top 3%
38
Patents All Time

Issued Patents All Time

Showing 1–25 of 38 patents

Patent #TitleCo-InventorsDate
12404983 Vehicle lamp Yasuhiro Okubo 2025-09-02
12085128 Axle bearing, grease composition and rolling ball bearing Ryouta KONDOU, Makoto Seki, Susumu Yamaji 2024-09-10
11851627 Grease composition for tapered roller bearing and tapered roller bearing Ryouta KONDOU 2023-12-26
10597598 Grease composition and grease-sealed roller bearing Motohiro Ito, Ryouta KONDOU 2020-03-24
10465140 Grease composition Masaharu Inoue, Kazuhiro Watanabe, Tomoyoshi Izutsu, Hiroyuki Amari, Minoru Hasegawa +1 more 2019-11-05
9796944 Grease composition, grease-packed bearing, universal joint for propeller shaft, lubricating oil composition, and oil-impregnated sintered bearing Hidenobu Mikami, Yosuke Taguchi 2017-10-24
9765821 Rolling bearing Motohiro Ito 2017-09-19
9394500 Grease composition, grease-enclosed bearing, and one-way clutch Hidenobu Mikami 2016-07-19
9217471 Lubricant composition and bearing using same Mika Kohara, Kenji Tamada 2015-12-22
9150809 Thickener, grease, method for producing the same, and grease-packed bearing 2015-10-06
9139793 Grease composition, grease-packed bearing, universal joint and linear motion device Mitsunari Asao 2015-09-22
8946134 Grease composition, grease-packed bearing, universal joint for propeller shaft, lubricating oil composition, and oil-impregnated sintered bearing Hidenobu Mikami, Yosuke Taguchi 2015-02-03
8673829 Grease composition and grease composition-enclosed rolling bearing and universal joint 2014-03-18
8632233 Vehicle lighting device with heat sink member and shade 2014-01-21
8629090 Rust resisting grease composition, grease-enclosed bearing, and rust resisting agent for use in grease composition 2014-01-14
8622785 Method of making antireflective roughened surface and lens barrel with roughened surface made by the method Koichiro Hirabayashi, Tetsuya Uno, Kazutake Boku 2014-01-07
8609598 Grease composition having a base oil, a thickener and an additive including a metal salt of dibasic acid Hidenobu Mikami, Mitsunari Asao, Eiichirou Shimazu 2013-12-17
8414171 Vehicle lighting device 2013-04-09
8329623 Grease composition and grease-sealed bearing 2012-12-11
8280421 Terminal device and base station device Masahiko Nanri, Tsutomu Onuki 2012-10-02
8188016 Lubricant composition and bearing using same Mika Kohara, Kenji Tamada 2012-05-29
8058216 Grease composition and grease-enclosed rolling bearing 2011-11-15
8048835 Grease composition and grease-enclosed bearing Mitsunari Asao, Masaki Egami 2011-11-01
7980732 Projector type lamp 2011-07-19
7910525 Grease composition, grease-enclosed bearing, and rotation-transmitting apparatus with built-in one way clutch Hidenobu Mikami 2011-03-22