MH

Masaaki Hirano

Sumitomo Electric Industries: 71 patents #74 of 21,551Top 1%
HH Hitachi High-Technologies: 6 patents #776 of 1,917Top 45%
Kawasaki: 5 patents #446 of 2,943Top 20%
RE Renesas Electronics: 5 patents #829 of 4,529Top 20%
SL Sumitomo Riko Company Limited: 2 patents #134 of 446Top 35%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
📍 Miyoshi, JP: #10 of 2,464 inventorsTop 1%
Overall (All Time): #17,862 of 4,157,543Top 1%
90
Patents All Time

Issued Patents All Time

Showing 1–25 of 90 patents

Patent #TitleCo-InventorsDate
12370878 Fluid-filled vibration damping device Takashi Kume 2025-07-29
12332103 Dispensing device, automated analysis device, and dispensing method Masafumi Shimada, Eiichiro TAKADA, Akihisa Makino 2025-06-17
12253135 Tubular vibration-damping device Takashi Kume 2025-03-18
12174210 Automated analyzer and cleaning method Masashi Fukaya, Akihiro Yasui 2024-12-24
12059742 Holding jig and holding jig set for double-acting friction stir spot welding, double-acting friction stir spot welding device, and double-acting friction stir spot welding method Etsuko Yamada 2024-08-13
11491576 Refill friction stir spot welding method, pressing tool set, and refill friction stir spot welding device Shunsuke HARUNA, Shintaro FUKADA, Takashi Ninomiya, Etsuko Yamada 2022-11-08
11493721 Optical fiber having identification mark and manufacturing method for optical fiber having identification mark Hideki Yamaguchi 2022-11-08
11396060 Holding jig and holding jig set for double-acting friction stir spot welding, double-acting friction stir spot welding device, and double-acting friction stir spot welding method Etsuko Yamada 2022-07-26
11345627 Method of manufacturing optical fiber preform and optical fiber preform Tetsuya Haruna, Yoshiaki Tamura, Yuki Kawaguchi 2022-05-31
11199479 Dispensing device and dispensing method Takahiro Ando 2021-12-14
11179799 Clamp member for double-acting friction stir spot welding device, double-acting friction stir spot welding device, and double-acting friction stir spot welding method Takashi Ninomiya, Etsuko Yamada 2021-11-23
11084121 Double-acting friction stir spot welding method and apparatus Etsuko Yamada 2021-08-10
10891186 Semiconductor device and semiconductor system including the same Toru KAWANISHI, Tadashi Teranuma 2021-01-12
10690690 Automatic analyser and method Akihiro Yasui, Saori CHIDA 2020-06-23
10670478 Temperature measurement circuit and method, and microcomputer unit Chiaki Kumahara, Tetsuhiro Koyama 2020-06-02
10451787 Optical fiber and light source device Yoshinori Yamamoto, Yoshiaki Tamura 2019-10-22
10139558 Optical fiber Yuki Kawaguchi, Yoshinori Yamamoto 2018-11-27
9977183 Optical fiber and optical fiber transmission path Yuki Kawaguchi, Yoshinori Yamamoto 2018-05-22
9932265 Method of making an optical fiber containing an alkali metal in the core Tetsuya Haruna, Yoshiaki Tamura, Tetsuya Nakanishi 2018-04-03
9927453 Dispensing device and dispensing method Takamichi Mori 2018-03-27
9905994 Optical fiber and optical transport system Yoshinori Yamamoto 2018-02-27
9817184 Optical fiber Yoshiaki Tamura, Tetsuya Haruna, Hirotaka Sakuma 2017-11-14
9696508 Optical fiber cable Yoshinori Yamamoto, Masakazu TAKAMI 2017-07-04
9696331 Automatic analytical device and method Kazuhiro Nakamura 2017-07-04
9645340 Optical fiber cable Yoshinori Yamamoto, Masakazu TAKAMI 2017-05-09