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SAKURAI YOSHIFUMI

Overview
  • Total Patents
    15
About

SAKURAI YOSHIFUMI has a total of 15 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Japan, EPO (European Patent Office) and United States. Its main competitors in its focus markets audio-visual technology, machines and electrical machinery and energy are ROLA COMPANY AUSTRALIA PROPRIE, ZHANG KUNLIANG and TDK ELECTRONICS CO LTD.

Patent filings in countries

World map showing SAKURAI YOSHIFUMIs patent filings in countries
# Country Total Patents
#1 Japan 13
#2 EPO (European Patent Office) 1
#3 United States 1

Patent filings per year

Chart showing SAKURAI YOSHIFUMIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sakurai Yoshifumi 15
#2 Saiki Koji 4
#3 Saiki Kouji 3
#4 Onishi Kouji 3
#5 Satou Masatoshi 2
#6 Suzuki Keiji 2
#7 Matsushita Shunsuke 2
#8 Akasaka Hideki 2
#9 Kimura Fumito 2
#10 Tsujimoto Hiroaki 1

Latest patents

Publication Filing date Title
JPS635505A Vertically magnetized film and manufacture thereof
JPS61544A Vertically magnetizable film
JPS60170213A Magnetic thin film and manufacture thereof
JPS6016409A Vertical magnetization film
JPS59160164A Magnetooptic recording material
JPS59148157A Photomagnetic recording medium
JPS5967612A Manufacture of photomagnetic recording medium
JPS58215744A Photothermal magnetic recording medium
JPS58215013A Manufacture of vertical magnetization film
JPS5867006A Laminated vertically magnetizing film