Learn more

MURAYAMA YOICHI

Overview
  • Total Patents
    27
About

MURAYAMA YOICHI has a total of 27 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets surface technology and coating, electrical machinery and energy and audio-visual technology are BOBST MANCHESTER LTD, SABLEV L P and XIANGTAN HONGDA VACUUM TECH CO LTD.

Patent filings in countries

World map showing MURAYAMA YOICHIs patent filings in countries

Patent filings per year

Chart showing MURAYAMA YOICHIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Murayama Yoichi 26
#2 Sawada Shinji 6
#3 Sato Hiroyuki 4
#4 Kashiwagi Kunihiro 3
#5 Hirata Fumikuni 2
#6 Okuno Eiji 2
#7 Narita Toshio 2
#8 Hayakawa Toshihiro 1
#9 Yamaguchi Tomoyuki 1
#10 Watanabe Akihiro 1

Latest patents

Publication Filing date Title
JP2001231899A Colored carbon shaft for golf club
JPH09176835A Formation of one-point pattern on product surface
JPH09176833A Formation of pattern on product surface
JPH09176834A Formation of multicolor pattern on product surface
JPH09176868A Formation of transparent protective film for preventing discoloration on silver product
JPH09176836A Formation of hard ornamental film on product surface
JPH09176832A Formation of multicolor pattern on production surface
JPH08337870A High-frequency plasma film forming device
JPH07274930A Smoking controller
JPH0665724A Device for inline plasma vapor deposition
JPH05181007A Production of hard color thin film
JPH05181008A Production of hard color thin film
JPH06122970A High-frequency excited ion plating device
JPH04136156A Transparent protective film structure
JPH04107262A Transparent protective film on silver surface
JPH04107261A Mixed film of aluminum and organic matter
JPH02214701A Plasma polymerization reactor
JPS6333558A Multilayered thin film
JPS62280357A Ion plating using electron beam evaporation and apparatus therefor
JPS62218550A Manufacture of hard and black oxide thin film