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HAMAMOTO TECHNICAL KK

Overview
  • Total Patents
    11
About

HAMAMOTO TECHNICAL KK has a total of 11 patent applications. Its first patent ever was published in 1984. It filed its patents most often in Japan. Its main competitors in its focus markets optics and machines are HORIKAWA KK, KIM JUN YEOB and KOPP PETER.

Patent filings in countries

World map showing HAMAMOTO TECHNICAL KKs patent filings in countries
# Country Total Patents
#1 Japan 11

Patent filings per year

Chart showing HAMAMOTO TECHNICAL KKs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Machines

Focus technologies

# Technology
#1 Spectacles
#2 Certain plastics
#3 Shaping of plastics

Top inventors

# Name Total Patents
#1 Hamamoto Eisuke 5
#2 Yamaguchi Katsuji 3
#3 Hamamoto Masanari 2
#4 Kondo Mutsuo 1
#5 Yamamoto Akitomi 1
#6 Yamamoto Akifumi 1

Latest patents

Publication Filing date Title
JP2010155447A Method for manufacturing plastic spectacles front frame
JP2010085896A Lens fixing mechanism of spectacle frame
JP2002207197A Tube type pad arm clamping mechanism of spectacle front frame
JP2002040375A Removable spring-up type spectacles
JP2002014304A Combination spectacles
JP2002006263A Lens securing mechanism for rimless spectacles
JPH11271691A Freely hookable and unhookable spectacle spring hinge and hooking and unhooking method therefor
JPH10253928A Lens fixing mechanism for suspender type glasses
JPH08201731A Rimless spectacles adjustable in lens supporting
JPS60257421A Production of integral type metal front frame
JPS60156035A Metallic frame spectacles