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TOMIOKA KOUGAKU KK

Overview
  • Total Patents
    11
About

TOMIOKA KOUGAKU KK has a total of 11 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Japan. Its main competitors in its focus markets optics and machine tools are FUJIAN CASTECH CRYSTALS INC, TOCHIGI KOSEKI KK and EUROMICRON WERKZEUGE GMBH.

Patent filings in countries

World map showing TOMIOKA KOUGAKU KKs patent filings in countries
# Country Total Patents
#1 Japan 11

Patent filings per year

Chart showing TOMIOKA KOUGAKU KKs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Machine tools

Focus technologies

# Technology
#1 Optical systems
#2 Grinding or polishing devices

Top inventors

# Name Total Patents
#1 Takei Shoichi 3
#2 Furuta Hiroyuki 3
#3 Enomoto Keiji 2
#4 Takei Shiyouichi 2
#5 Kusakaha Tooru 1
#6 Inagaki Hamao 1
#7 Funejima Toshio 1
#8 Nakayama Yuzo 1
#9 Ozawa Toshirou 1
#10 Onodera Iwai 1

Latest patents

Publication Filing date Title
JPH0497210A Optical scanner
JPH0458210A Optical scanner
JPH03291186A Laser beam head for laser beam machining
JPS60230610A Objective lens for optical disk
JPS59148020A Lens for video disk
JPS57211463A Polishing lens holder
JPS5726815A Objective lens for video disk
JPS5614208A Macro change-over device of rectilinear type zoom lens
JPS53141617A Iris blade bound prevention device
JPS53129629A Short telescopic lens in total length
JPS5233526A Wide angle lens of retrofocus type