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CHOFU SEISAKUSHO CO LTD

Overview
  • Total Patents
    473
  • GoodIP Patent Rank
    47,364
  • Filing trend
    ⇧ 650.0%
About

CHOFU SEISAKUSHO CO LTD has a total of 473 patent applications. It increased the IP activity by 650.0%. Its first patent ever was published in 1996. It filed its patents most often in Japan and Republic of Korea. Its main competitors in its focus markets environmental technology, thermal processes and optics are GUANGBIN SUN, BEIJING XINXUANSHIWEI TECHNOLOGY CO LTD and FEDERAL NOE G VOENNOE OBRAZOVATEL NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL NOGO OBRAZOVANIJA VOENNYJ A.

Patent filings in countries

World map showing CHOFU SEISAKUSHO CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 472
#2 Republic of Korea 1

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Ishii Yukio 34
#2 Miyamoto Shin 30
#3 Abe Junji 28
#4 Yamamoto Hiroshi 28
#5 Kaneda Hiroshi 25
#6 Takakura Koji 25
#7 Azuma Iwao 22
#8 Horimoto Satoshi 22
#9 Nozaki Hironori 21
#10 Takenaga Isamu 20

Latest patents

Publication Filing date Title
JP2020153535A Hot water storage type water heater
JP2020085251A Hot water supply system
JP2020079661A Temperature control device
JP2020070999A Air-conditioning hot water storage device
JP2020071001A Hot water supply device and air-conditioning hot water supply facility
JP2020070998A Air-conditioning ventilation device
JP2020071002A Heat pump device
JP2020070967A Water heater
JP2020070940A Temperature control device
JP2020029989A Hot water storage type water heater
JP2019196852A Water heater
JP2019190790A Hot water supply device
JP2019190789A Heat exchanger
JP2019158235A Heat exchanger and hot water supply device
JP2019158236A Water heater and latent heat exchanger
JP2019143940A Air conditioning facility
JP2019086229A Air-conditioning panel
JP2017083169A Heat exchanger
JP2018105587A Gas burner device
JP2018069129A Neutralization device