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YAMANASHI DENSHI KOGYO KK

Overview
  • Total Patents
    45
About

YAMANASHI DENSHI KOGYO KK has a total of 45 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets optics and semiconductors are KESEL JAN DE, MURAKAMI TSUYOSHI and ZHUHAI UN-TERN IMAGING PRODUCTS CO LTD.

Patent filings per year

Chart showing YAMANASHI DENSHI KOGYO KKs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Semiconductors

Focus technologies

# Technology
#1 Electrography
#2 Semiconductor devices

Top inventors

# Name Total Patents
#1 Suzuki Hajime 19
#2 Nakamura Hideki 11
#3 Koizumi Toshihiko 9
#4 Uchida Tadayoshi 7
#5 Murano Toshiro 6
#6 Sakuma Tetsuya 5
#7 Watanabe Hisao 5
#8 Sawanobori Hiroaki 4
#9 Miyagawa Minoru 4
#10 Shinohara Takumi 3

Latest patents

Publication Filing date Title
JP2013029590A Electrophotographic photoreceptor and image forming apparatus
JP2013029589A Electrophotographic photoreceptor and image forming apparatus
JP2013029588A Electrophotographic photoreceptor and image forming apparatus
JP2012121585A Storage tray of photoreceptor drum
JP2012013844A Recycling method of conductive support, and electrophotographic photoreceptor using recycled conductive support
JP2010237369A Method for recycling electrophotographic photoreceptor, and recycled electrophotographic photoreceptor
JP2010107795A Electrophotographic photoreceptor, method for regenerating electrophotographic photoreceptor and scribing device
JP2009186603A Coating film removing device and method for removing coating film
JP2009036887A Photoreceptor drum storage tray
JP2008256851A Electrophotographic photoreceptor and electrophotographic apparatus
JP2008250149A Monolayer dispersion type photoreceptor and electrophotographic device
JP2008250079A Electrophotographic photoreceptor
JP2008250071A Electrophotographic photoreceptor
JP2008216929A Electrophotographic photoreceptor and electrophotographic device using electrophotographic photoreceptor
WO2007088770A1 Electrophotographic photoreceptor and electrophotographic device
JP2007233351A Electrophotographic photoreceptor and electrophotographic device
JP2008152000A Packing material for electrophotographic photoreceptor
JP2008145708A Electrophotographic apparatus
JP2007271962A Electrophotographic photoreceptor
JP2007219377A Electrophotographic photoreceptor, electrophotographic apparatus, and method for manufacturing electrophotographic photoreceptor