YM

Yasushi Maejima

EL Edwards Japan Limited: 18 patents #3 of 79Top 4%
BL Boc Edwards Technologies Limited: 7 patents #2 of 17Top 15%
SI Seiko Instruments: 4 patents #389 of 1,437Top 30%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
BL Boc Edwards Japan Limited: 1 patents #7 of 16Top 45%
SK Seiko Seiki Kabushiki Kaisha: 1 patents #47 of 125Top 40%
📍 Yachiyo, JP: #3 of 236 inventorsTop 2%
Overall (All Time): #116,523 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 1–25 of 31 patents

Patent #TitleCo-InventorsDate
12392352 Vacuum exhaust apparatus and vacuum pump used therein Yoshinobu Ohtachi, Tsutomu Takaada 2025-08-19
12158152 Vacuum pump and stator component of thread groove pump portion of the vacuum pump Yoshinobu Ohtachi, Tsutomu Takaada, Toshiki Yamaguchi 2024-12-03
12044251 Vacuum pump Hideki Enosawa, Manabu Nonaka, Tsutomu Takaada 2024-07-23
11946482 Vacuum pump, rotor, and washer Katsuhisa Yokozuka, Yoshinobu Ohtachi, Tsutomu Takaada 2024-04-02
11889595 Vacuum pump and heating device therefor Yoshinobu Ohtachi, Tsutomu Takaada 2024-01-30
11480182 Vacuum pump, cylindrical portion used in vacuum pump, and base portion Yoshinobu Ohtachi, Tsutomu Takaada 2022-10-25
11466692 Adaptor and vacuum pump Yoshinobu Ohtachi, Tsutomu Takaada 2022-10-11
11384770 Vacuum pump, and control device of vacuum pump Hideo Fukami, Yoshinobu Ohtachi, Tsutomu Takaada 2022-07-12
10704555 Stator-side member and vacuum pump Yoshiyuki Sakaguchi, Akihiro Ito, Yoshinobu Ohtachi, Tsutomu Takaada 2020-07-07
10578158 Vacuum pump and abnormality cause estimating method for vacuum pump Yoshinobu Ohtachi, Tsutomu Takaada, Manabu Nonaka 2020-03-03
10480523 Vacuum pump Yoshinobu Ohtachi, Tsutomu Takaada 2019-11-19
10364814 Vacuum pump Yongwei Shi, Manabu Nonaka, Yoshinobu Ohtachi, Tsutomu Takaada 2019-07-30
10001126 Vacuum pump Tooru Miwata, Keiichi Ishii, Katsuhide Machida, Yoshinobu Ohtachi, Tsutomu Takaada 2018-06-19
9982682 Rotor and vacuum pump equipped with same Yoshinobu Ohtachi, Tsutomu Takaada, Yoshiyuki Sakaguchi, Yoshiyuki Takai 2018-05-29
9790946 Exhaust pump Yoshinobu Ohtachi, Tsutomu Takaada 2017-10-17
8690525 Vacuum pump Yoshinobu Ohtachi, Manabu Nonaka 2014-04-08
8403652 Molecular pump and flange having shock absorbing member Yoshinobu Ohtachi, Rumiko Wada, Yoshihiro Enomoto, Chris Bailey, Dawn Stephenson +1 more 2013-03-26
7753661 Vacuum pump Satoshi Okudera, Yoshiyuki Sakaguchi 2010-07-13
7390164 Fixing structure for fixing rotor to rotor shaft, and turbo molecular pump having the fixing structure Yutaka Inayoshi, Shinji Kawanishi, Kou Sakurai, Hiroyuki Suda, Takeshi Akimoto 2008-06-24
6890145 Vacuum pump Masayoshi Takamine, Shinji Kawanishi, Yoshiyuki Sakaguchi, Satoshi Okudera, Kenji Kabata +1 more 2005-05-10
6854956 Turbo-molecular pump Tooru Miwata, Satoshi Okudera, Yoshiyuki Sakaguchi 2005-02-15
6824349 Vacuum pump Satoshi Okudera, Yoshiyuki Sakaguchi 2004-11-30
6814536 Vacuum pump Yoshiyuki Sakaguchi 2004-11-09
6752588 Vacuum pump Shinji Kawanishi, Yoshiyuki Sakaguchi, Satoshi Okudera 2004-06-22
6709226 Vacuum pump Yoshiyuki Sakaguchi 2004-03-23