HF

Hisashi Fujieda

SI Seiko Instruments: 4 patents #389 of 1,437Top 30%
Overall (All Time): #1,200,581 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9235193 Temperature compensation-type balance, timepiece movement, mechanical timepiece and manufacturing method of temperature compensation-type balance Takashi Niwa, Masahiro Nakajima, Takuma Kawauchiya, Manabu Shinke 2016-01-12
9098067 Escapement, timepiece movement and timepiece Masayuki Koda, Shigeo Suzuki 2015-08-04
8303170 Bearing structure and watch equipped with the same 2012-11-06
7405373 Switch structure and electronic device Hiroyuki Konishi, Fumiyoshi Nagakura, Akiko Asahata, Masaji Kondo, Shigeki Yagi 2008-07-29