Learn more

KABUSHIKI KAISYA OHARA

Overview
  • Total Patents
    11
About

KABUSHIKI KAISYA OHARA has a total of 11 patent applications. Its first patent ever was published in 1994. It filed its patents most often in United States. Its main competitors in its focus markets materials and metallurgy, audio-visual technology and machines are KAWAI HIDEKI, OHARA KABUSHIKI KAISHA and OBARA OPTICAL GLASS.

Patent filings in countries

World map showing KABUSHIKI KAISYA OHARAs patent filings in countries
# Country Total Patents
#1 United States 11

Patent filings per year

Chart showing KABUSHIKI KAISYA OHARAs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Goto Naoyuki 7
#2 Yamaguchi Katsuhiko 4
#3 Kawashima Yasuyuki 3
#4 Maekawa Masashi 2
#5 Senoo Tatsuya 1
#6 Kawasaki Nobuo 1
#7 Miyazaki Mutsumi 1
#8 Yatsuda Hisao 1
#9 Karasawa Yoshio 1
#10 Onozawa Masahiro 1

Latest patents

Publication Filing date Title
US5942793A Low alpha-ray level glass and method for manufacturing the same
US5607886A Optical glass for mold pressing having softening capability at low temperature
US5532194A Cordierite glass-ceramic and method for manufacturing the same
US5588979A Apparatus for continuously forming and processing a glass-ceramic
US5626935A Magnetic disk substrate and method for manufacturing the same
US5391522A Glass-ceramic for magnetic disks and method for manufacturing the same