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HASEGAWA MASAKI

Overview
  • Total Patents
    29
About

HASEGAWA MASAKI has a total of 29 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets electrical machinery and energy, environmental technology and organic fine chemistry are SHIRVANIAN ALIREZA PEZHMAN, MIN MYOUNG-KI and MEI WU.

Patent filings in countries

World map showing HASEGAWA MASAKIs patent filings in countries
# Country Total Patents
#1 Japan 17
#2 United States 10
#3 EPO (European Patent Office) 1
#4 WIPO (World Intellectual Property Organization) 1

Patent filings per year

Chart showing HASEGAWA MASAKIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hasegawa Masaki 28
#2 Saigo Kazuhiko 10
#3 Harashina Hatsuhiko 8
#4 Saigou Kazuhiko 6
#5 Yonezawa Nobuyuki 5
#6 Takeuchi Takashi 4
#7 Sekimoto Kazuhiro 3
#8 Yonezawa Noriyuki 3
#9 Tachibana Kozo 3
#10 Kanoe Toshio 3

Latest patents

Publication Filing date Title
US2009297954A1 Nonaqueous solvent and nonaqueous electrolytic solution for electricity storage device and nonaqueous electricity storage device, lithium secondary battery and electric double layer capacitor using the same
US2007048596A1 Lithium ion secondary battery
JP2004140979A Coating peeling tool for ultra thin coated wire
JP2001294649A Cyclobutanedicarboxylic acid derivative, method for producing the same and polymer thereof
JPH0586181A New polyamide
US4975517A Polyamide from optically active, anti head-to-head coumarin dimer
JPS62201908A Novel polymer having cyclobutane ring unit in main chain
JPS62201907A Novel polymer having cyclobutane ring unit in main chain
JPS62201909A Novel polymer having cyclobutane ring unit in main chain
JPS62201874A Asymmetric diolefin compound
JPS61246165A Asymmetric diolefin compound
JPS61246164A Asymmetric diolefin compound
JPS61213220A Optically active polyamide
JPS61179229A Optically active polyamide
JPS61160055A Separation agent
EP0207993A1 Optically active, anti head-to-head coumarin dimer-polyamides.
JPS60248644A Novel cyclobutane derivative
JPS6028430A Optically active polyamide
JPS6016988A Optically active anti-head-head coumarin dimer
JPS5855926A Formation of image using polyamide type linear polymer