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TPR CO LTD

Overview
  • Total Patents
    262
  • GoodIP Patent Rank
    7,589
  • Filing trend
    ⇧ 38.0%
About

TPR CO LTD has a total of 262 patent applications. It increased the IP activity by 38.0%. Its first patent ever was published in 2009. It filed its patents most often in Japan, WIPO (World Intellectual Property Organization) and China. Its main competitors in its focus markets mechanical elements, engines, pumps and turbines and materials and metallurgy are KK RIKEN, ALUMINIUMWERKE NUERNBERG GMBH and ERNST MAHLE DIPL ING.

Patent filings per year

Chart showing TPR CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sato Akira 33
#2 Kobayashi Naoya 26
#3 Hatakeyama Koichi 25
#4 Oizumi Takashi 23
#5 Inoue Takashi 22
#6 Nakazawa Atsushi 20
#7 Tamaki Seiji 18
#8 Kawai Kiyoyuki 16
#9 Hama Masahide 15
#10 Horigome Masami 15

Latest patents

Publication Filing date Title
WO2021075326A1 Compression ring and piston equipped with compression ring
CN111946481A Cylinder liner and cylinder hole
CN112096536A Multi-ratchet bush, method for manufacturing same, and method for identifying joint strength
WO2020262464A1 Hybrid capacitor
WO2020256115A1 Current collector for power storage device electrode, manufacturing method thereof, and power storage device
WO2020218105A1 Porous body
WO2020129846A1 Thrust washer
CN110985225A Cylinder sleeve and cylinder hole
CN111971829A Adhesive agent
WO2020100564A1 Piston ring combination
WO2020080520A1 Capacitor, and capacitor electrode
WO2020080521A1 Capacitor, and capacitor electrode
JP2021004434A Composite material, dispersion, master batch, molding and method for producing composite material
JP2021001644A Piston ring and piston for internal combustion engine with piston ring
JP2021001612A Combination of piston ring
EP3816486A1 Piston ring
JP2020200803A piston ring
JP2020194688A Planar heater, method for manufacturing planar heater, and heater unit
JP2020193666A Surface treatment method
JP2020187826A Dual ion battery