NK

Norikazu Koyuhara

HI Hitachi: 7 patents #5,859 of 28,497Top 25%
HE Hitachi Ferrite Electronics: 1 patents #2 of 14Top 15%
HM Hitachi Metal: 1 patents #1 of 21Top 5%
Overall (All Time): #555,109 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
11398328 Sintered MnZn ferrite body Yasuharu Miyoshi, Tomoyuki Tada 2022-07-26
11242288 Sintered Ni ferrite body, coil device, and method for producing sintered Ni ferrite body Satoru Tanaka, Tomoyuki Tada 2022-02-08
10950375 MnZn ferrite core and its production method Yasuharu Miyoshi, Tomoyuki Tada, Satoru Tanaka 2021-03-16
10937579 MnZn-ferrite and its production method Yasuharu Miyoshi, Tomoyuki Tada, Satoru Tanaka 2021-03-02
10919809 MnZn ferrite and its production method Yasuharu Miyoshi, Tomoyuki Tada 2021-02-16
10304602 MnZn-based ferrite and method for manufacturing the same Tomoyuki Tada, Yasuharu Miyoshi 2019-05-28
7061355 Ferrite core, CATV equipment and bi-directional CATV system Satoru Tanaka, Makoto Kadowaki, Yoshihito Yoshikawa, Shiro Murakami 2006-06-13
5815062 Magnetic core Youichi Yamamoto, Toshihiko Tanaka 1998-09-29
5618464 Ni ferrite and core made of Ni ferrite for power supplies Emi Nakagawa, Hitoshi Ueda, Akio Uchikawa 1997-04-08