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OPTROM KK

Overview
  • Total Patents
    61
About

OPTROM KK has a total of 61 patent applications. Its first patent ever was published in 1997. It filed its patents most often in WIPO (World Intellectual Property Organization), Australia and EPO (European Patent Office). Its main competitors in its focus markets computer technology, audio-visual technology and it methods for management are OPUTOROMU KK, GERHARD DIRKS DR and SPECTRA LOGIC CORP.

Patent filings per year

Chart showing OPTROM KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Saito Tetsuo 51
#2 Shigetomi Takashi 49
#3 Komaki Tsunematsu 38
#4 Tetsuo Saito 7
#5 Yokota Eiji 7
#6 Takashi Shigetomi 7
#7 Tsunematsu Komaki 5
#8 Hasuda Kazutaka 4
#9 Eiji Yokota 2
#10 Tsunematsu Shigetomi Takashi S 1

Latest patents

Publication Filing date Title
WO0190940A1 Information managing system using storage medium
WO0188794A1 Information managing system using storage medium
US2001044864A1 Disk storage system having an electronic circuit mounted on the surface of the disk and control method thereof
CN1323028A Method for preventing unauthorized used of CD, optical disk based on the same method and its producing method
TW389894B Device for exchanging information with storage medium having electronic circuit and the electronic circuit, and system including the same
JPH11120624A Protective coating film on printed surface of optical disk and its production