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TANAKA MASAICHI

Overview
  • Total Patents
    13
About

TANAKA MASAICHI has a total of 13 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan. Its main competitors in its focus markets measurement are EQUITIME INC, URANUS ELECTRONICS and HMW INDUSTRIES.

Patent filings in countries

World map showing TANAKA MASAICHIs patent filings in countries
# Country Total Patents
#1 Japan 13

Patent filings per year

Chart showing TANAKA MASAICHIs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Measurement

Focus technologies

# Technology
#1 Electronic time-pieces

Top inventors

# Name Total Patents
#1 Tanaka Masaichi 13
#2 Hara Chisato 9
#3 Akao Tomizou 8
#4 Ikeda Yoshihide 3
#5 Tanaka Soyo 1
#6 Chiba Michiomi 1
#7 Okazaki Yasuhiro 1
#8 Tanaka Toshiaki 1
#9 Tanaka Sayoko 1

Latest patents

Publication Filing date Title
JPS57131092A Display correcting device of electronic watch
JPS5851198A Underlay magic rule
JPS5760982A Turning device for handle of bicycle and fixing device for angle of front wheel
JPS56124639A Energy-saving driving device of car
JPS5474467A System for advancing or delaying electronic watch
JPS53141064A Temperature compensation system for electronic timepiece
JPS53102782A Speed adjustment system in electronic timepiece
JPS5391781A Speed adjustment system in electronic timepiece
JPS52143070A Electronic clock with automatic time adjusting device
JPS5240170A Display correction device for electronic watches
JPS5215373A Time adjustor for electronic watch
JPS5185855A Eakutsushonno seiho oyobi eakutsushon