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YASHICA CO LTD

Overview
  • Total Patents
    303
About

YASHICA CO LTD has a total of 303 patent applications. Its first patent ever was published in 1958. It filed its patents most often in Japan, United States and Germany. Its main competitors in its focus markets optics, basic communication technologies and measurement are S M M H CORP, MOVIECAM KINEMATOGRAPH and LOUIS JOSEPH EMMANUEL COLARDEA.

Patent filings in countries

World map showing YASHICA CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 204
#2 United States 63
#3 Germany 32
#4 United Kingdom 3
#5 Canada 1

Patent filings per year

Chart showing YASHICA CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Muramatsu Sadao 49
#2 Ichihashi Osamu 41
#3 Yamamoto Masaru 40
#4 Abe Shiyouzou 26
#5 Takahashi Makoto 25
#6 Morota Masaaki 23
#7 Atsuta Riichi 15
#8 Tsujimura Masao 14
#9 Endou Takashi 12
#10 Wada Etsuaki 10

Latest patents

Publication Filing date Title
JPS59168407A Lens interchangeable camera capable of automatic focus adjustment
JPS59149328A Camera capable of auto-focusing with interchangeable lens
JPS59140426A Motor control device of lens interchangeable automatic focusing camera
JPS59170807A Lens driving motor controller
JPS59102219A Film rewinding device of camera
JPS5892831A Light detecting circuit
JPS5979876A Photoelectric conversion output circuit
JPS5977418A Clutch mechanism of camera
JPS5977419A Electromagnetic clutch mechanism of camera
JPS5977420A Automatic clutch mechanism of camera
JPS5975229A Automatic focus adjusting camera capable of manual focus adjustment
JPS5972431A Shutter closing control device
JPS5958913A Analog-digital conversion circuit
JPS5953821A Photometric value storage device of camera
JPS5936232A Photometric device of single-lens reflex camera
JPS5936231A Photometric device of single-lens reflex camera
JPS5936416A Forming circuit of initializing signal
JPS5915229A Program exposure control device of single-lens reflex camera whose lens is interchangeable
JPS58216227A Device for switching exposure mode of interchangeable lens
JPS58190930A Motor driving shutter of single-lens reflex camera