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HOYA CO LTD

Overview
  • Total Patents
    29
  • GoodIP Patent Rank
    188,482
About

HOYA CO LTD has a total of 29 patent applications. Its first patent ever was published in 2000. It filed its patents most often in China and Taiwan. Its main competitors in its focus markets optics, machines and materials and metallurgy are HOYA CORP, ZEISS STIFTUNG and BIO RAD MICROMEASUREMENTS LTD.

Patent filings in countries

World map showing HOYA CO LTDs patent filings in countries
# Country Total Patents
#1 China 27
#2 Taiwan 2

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Kobayashi Shuhei 2
#2 Kaminaka Kofu 1
#3 Misa Mishina 1
#4 Ichiya Uchida 1
#5 Tadayuki Tohon 1
#6 Yoko Sakai 1
#7 Kaneko Masauji 1
#8 Shinhiro Maeda 1
#9 Koichi Yamanaka Sakaji Sato 1
#10 Junichi Denchu 1

Latest patents

Publication Filing date Title
CN109956666A Optical glass and optical element
CN102730983A Manufacture method for covering glass for portable device
CN102308245A Dyed plastic lens fabrication method
CN1600722A Cast die pressed shaper and mfg.method of opticle element
CN1618745A Glass forming body, blank, base plate and optical element mfg. method
CN1936703A Grey-regulation mask and producing method
TW508440B Probe structure and manufacturing method thereof