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TOMBOW PENCIL

Overview
  • Total Patents
    885
  • GoodIP Patent Rank
    16,276
  • Filing trend
    ⇧ 16.0%
About

TOMBOW PENCIL has a total of 885 patent applications. It increased the IP activity by 16.0%. Its first patent ever was published in 1966. It filed its patents most often in Japan, EPO (European Patent Office) and United States. Its main competitors in its focus markets packaging and shipping, consumer goods and machines are GLUE DOTS INTERNAT LLC, ADALIS CORP and DRAGONFLY PENCIL CO LTD.

Patent filings per year

Chart showing TOMBOW PENCILs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Murakoshi Yasuo 92
#2 Kobayashi Kenji 46
#3 Okazaki Toshiaki 45
#4 Matsumaru Riyouji 37
#5 Shinya Masashi 27
#6 Taniguchi Shunichi 27
#7 Nakajima Koji 25
#8 Otawa Kiyotsugu 24
#9 Masumoto Hiroaki 23
#10 Katami Kazunori 20

Latest patents

Publication Filing date Title
JP2020196246A Writing instrument
JP2020203403A Eraser case and eraser
JP2020196166A Writing instrument
JP2020186345A Solid adhesive
JP2020163740A Method for manufacturing ballpoint pen tip and ballpoint pen tip
JP2020163741A Ballpoint pen tip, ballpoint pen refill, tip rear end processing device, and tip rear end processing method
JP2020157660A Ballpoint pen refill and ballpoint pen
JP2020128502A Pressure-sensitive transfer adhesive tape
JP2020122104A Transfer adhesive tape and transfer tool
JP2020015891A Oil-based ink composition for writing instrument
JP2020104376A Coating film transfer device
JP2020104377A Coating film transfer device
JP2020100432A Delivery container
JP2020090043A Coating film transfer tool
JP2020059247A Writing instrument
JP2018154135A Coating film transfer tool
JP2019209588A Coating film transfer implement
JP2019155711A Pressure sensitive transfer correction tape
JP2019142151A Ballpoint pen tip and ballpoint pen
JP2019014086A Coating film transfer implement