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HITACHI BILL SHISETSU ENG KK

Overview
  • Total Patents
    48
About

HITACHI BILL SHISETSU ENG KK has a total of 48 patent applications. Its first patent ever was published in 1991. It filed its patents most often in Japan. Its main competitors in its focus markets environmental technology, thermal processes and measurement are DAO KIM, ARKLA IND and NAAMLOOZE VENNOOTSCHAP ATHANO.

Patent filings in countries

World map showing HITACHI BILL SHISETSU ENG KKs patent filings in countries
# Country Total Patents
#1 Japan 48

Patent filings per year

Chart showing HITACHI BILL SHISETSU ENG KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ishii Susumu 20
#2 Sekiguchi Kyoichi 18
#3 Kumaki Michio 18
#4 Kabeta Akira 18
#5 Higo Yuzuru 16
#6 Tachibana Keiji 15
#7 Fukushima Yukio 14
#8 Otomo Takeshi 12
#9 Nakajima Tomio 9
#10 Kamitsuma Osaharu 8

Latest patents

Publication Filing date Title
JPH1151515A Method for recovering refrigerant and apparatus for recovering refrigerant
JPH1068558A Refrigerant composition for absorption type refrigerator
JPH10259971A Method and apparatus for on-site regeneration of freezer refrigerant
JPH10259970A Method and apparatus for recovery of refrigerant sealed in freezing equipment
JPH10238909A Method and apparatus for efficiently recovering refrigerant as well as adsorption tank
JPH10160160A Method for predicting accidental fire of high temperature regenerator burner and apparatus for predicting accidental fire of the burner
JPH10141818A Potential trouble automatic diagnosing method and apparatus for absorption refrigerator
JPH1047818A Method and device for examining trouble of absorption cold and hot water device
JPH09196491A Ammonia absorbing refrigerator and its corrosion preventive method
JPH0989423A Counting method for bleeding operation and counting mechanism therefor
JPH0989422A Method and apparatus for monitoring leakage of liquid enclosed in sealed circulating system
JPH0926237A Remote concentrated control method for refrigerator and remote concentrated control device for refrigerator
JPH08226572A Leakage monitoring method of safety valve, leakage monitoring device of safety valve, and rupture disc for leakage monitoring device of safety valve
JPH08219605A Method and device for predicting lock of pump in sealed circulation system
JPH07280398A Method and apparatus for determining air infiltration of refrigerator
JPH07251069A Reproducing method of refrigerant adsorbing agent and reproducing apparatus thereof
JPH07218061A Vacuum leakage-judging method for absorbing-type cold/ hot-water apparatus, and judging device thereof
JPH07198232A Judging method and device of absorption power remaining state and absorption power restore state
JPH07167459A Method and device for feeding of cool/hot air for local air conditioning
JPH07146036A Method and equipment for determining state of remaining adsorbing capacity of refrigerant adsorbent and state of recovery of adsorbing capacity thereof