Inventor

HIRAI YOSHIRO

3 patents

⚠️ This page may combine multiple inventors who share the name “HIRAI YOSHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CITIZEN WATCH CO LTD

2 patents

US4095129AJun 13, 1978

Rotor assembly for electro-mechanical transducer of electronic timepiece

CITIZEN WATCH CO LTD16 citations68

US10793935B2Oct 6, 2020

Carbon-containing steel material and method for producing same

CITIZEN WATCH CO LTD0 citations43

OURA TAKAYUKI

1 patent

US9503531B2Nov 22, 2016

Region identification server, region identification method, region identification program, and computer readable recording medium storing the program

OURA TAKAYUKI0 citations23