Learn more

ISHII TSUTOMU

Overview
  • Total Patents
    12
About

ISHII TSUTOMU has a total of 12 patent applications. Its first patent ever was published in 1975. It filed its patents most often in United States and Japan. Its main competitors in its focus markets semiconductors, basic materials chemistry and environmental technology are FORCE4 CORP, GRACEL CO LTD and SUZHOU QINGGUANG MATERIAL TECH CO LTD.

Patent filings in countries

World map showing ISHII TSUTOMUs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Japan 2

Patent filings per year

Chart showing ISHII TSUTOMUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ishii Tsutomu 12
#2 Shirakawa Yasuhiro 7
#3 Takeuchi Hajime 6
#4 Ooya Yasumasa 6
#5 Sakai Ryo 6
#6 Ito Yumi 5
#7 Nakagawa Katsutoshi 5
#8 Toyoshima Masaki 2
#9 Saito Yasunori 2
#10 Sato Masahiro 2

Latest patents

Publication Filing date Title
US2015133282A1 Sheet folding device
US2011031523A1 White light emitting device, backlight, liquid crystal display device, and illuminating device
US2011006334A1 White LED lamp, backlight, light emitting device, display device and illumination device
JPS63166136A Splicing of filament
JPS51151170A Falling ball viscometer