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HAMAKAWA YOSHIHIRO

Overview
  • Total Patents
    39
About

HAMAKAWA YOSHIHIRO has a total of 39 patent applications. Its first patent ever was published in 1978. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets environmental technology, semiconductors and surface technology and coating are APOLLON SOLAR, RGS DEV B V and ANTEC SOLAR GMBH.

Patent filings in countries

World map showing HAMAKAWA YOSHIHIROs patent filings in countries
# Country Total Patents
#1 Japan 28
#2 United States 8
#3 EPO (European Patent Office) 3

Patent filings per year

Chart showing HAMAKAWA YOSHIHIROs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hamakawa Yoshihiro 39
#2 Okamoto Hiroaki 12
#3 Takakura Hideyuki 8
#4 Oowada Yoshihisa 6
#5 Tawada Yoshihisa 4
#6 Morita Shoji 3
#7 Okuda Kouji 3
#8 Murozono Mikio 3
#9 Nitsuta Yoshiteru 3
#10 Adachi Toshio 3

Latest patents

Publication Filing date Title
JP2004104138A Photovoltaic power device
JP2004007018A Photovoltaic power generating apparatus
JP2002164554A Photovoltaic device
JPH077181A Semiconductor light emitting element
JPS6366924A Manufacture of solid-state thin-film through photo-cvd
JPS6336520A Formation of amorphous thin film
JPS6336522A Fromation of amorphous thin film
JPS62230067A Semiconductor light emitting device and manufacture thereof
JPS62230983A Thin film producing device
JPS60206018A Manufacture of semiconductor
JPS6050168A Production of thin solid film by photo cvd method
JPS59175170A Hetero junction solar battery and manufacture thereof
JPS58190810A Manufacture of p type amorphous silicon carbide
JPS58190814A Manufacture of amorphous silicon carbide
JPS58190072A Amorphous silicon photoelectric element
JPS58217414A Novel amorphous silicon carbide
JPS58190073A Thin film photoelectric element
JPS59124772A Stacked photovoltaic device with different unit cells
JPS59121733A Manufacture of input surface of x-ray image tube
JPS59121737A Input surface of x-ray image tube