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ULVAC SEIMAKU

Overview
  • Total Patents
    28
About

ULVAC SEIMAKU has a total of 28 patent applications. Its first patent ever was published in 1980. It filed its patents most often in Japan, United States and Australia. Its main competitors in its focus markets optics, surface technology and coating and environmental technology are 4WAVE INC, OURLOOK (ZHANGZHOU) OPTICAL TECH CO LTD and MURAYAMA YOUICHI.

Patent filings in countries

World map showing ULVAC SEIMAKUs patent filings in countries
# Country Total Patents
#1 Japan 22
#2 United States 4
#3 Australia 2

Patent filings per year

Chart showing ULVAC SEIMAKUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Toku Akihiko 11
#2 Nakamura Kazuo 11
#3 Isao Akihiko 7
#4 Mizorogi Hirotsugu 6
#5 Tokoro Yasuo 5
#6 Arai Kojirou 4
#7 Mizorogi Kouji 4
#8 Watanuki Shigeru 3
#9 Iso Hiroyuki 3
#10 Nemoto Tetsuya 2

Latest patents

Publication Filing date Title
JPH0439660A Substrate for photomask material, photomask material, and manufacture of them
JPH042768A Plasma electron beam heating apparatus
JPH03158457A Method and device for heating evaporating source by plasma electron beam
JPH0375359A Formation of sulfide-type optical film by using plasma electron beam
JPH0375358A Formation of thin film of fluoride or its mixture by using plasma electron beam
JPH0364456A Heater with plasma electron beam
JPH01263272A Magnetron type sputtering device
JPH01260792A Device for heating plasma electron beam
JPS6468470A Plasma electron beam heating source
JPS62234163A Photomask and its production
JPS62229152A Photomask and its production
JPS62284074A Continuous sputtering device
JPS6276633A Method for evaluation of cleaning performance in high-pressure water spray cleaning, brush-scrubber cleaning, supersonic cleaning and the like
JPS61267054A Etching method for photomask blank
JPS60107651A Photomask
JPS58185454A Glass base plate for hard mask
JPS5859024A Apparatus for bonding thin film
JPS5822377A Formation of heterogeneous optical thin film by two-source vapor deposition
JPS5822376A Formation of heterogeneous optical thin film by reaction vapor deposition
JPS57175847A Manufacture of selective absorption film for solar heat collection