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HIRAI ENG CORP

Overview
  • Total Patents
    40
About

HIRAI ENG CORP has a total of 40 patent applications. Its first patent ever was published in 1986. It filed its patents most often in Japan, EPO (European Patent Office) and United States. Its main competitors in its focus markets environmental technology, machines and civil engineering are ULRICH SIEGFRIED, VIRK KULDIP and YANAGI YUICHI.

Patent filings per year

Chart showing HIRAI ENG CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hirai Takashi 39
#2 Hirai Keisuke 23
#3 Kaneko Yoshio 8

Latest patents

Publication Filing date Title
JPH1136539A Roof
JPH10280619A Roof
JPH1088751A Roof
JPH09195456A Roof ridge
JPH09195457A Roof
JPH09170305A Length adjustment method in roofing work
JPH06207449A Natural lighting body assembly jig for solar energy collecting roof
MY141445A Roof apparatus
EP0599497A1 Roof system utilizing a solar cell
JPH06207450A Natural lighting body fastener for solar energy collecting roof
JPH0726684A Natural lighting body of solar-energy collecting roof
AU4468293A Roof apparatus
JPH06264564A Roof member installation fitting
JPH06229080A Solar energy collecting roof
JPH06158798A Solar cell using roof device
JPH0688406A Roofing device
JPH03241157A Lighting frame of roof
JPH03241151A Fixing part for side roof panel
JPS63118448A Decorative tower for rood ridge
JPS6217254A Snow melting apparatus of roof