Learn more

HOSOI YUJI

Overview
  • Total Patents
    58
About

HOSOI YUJI has a total of 58 patent applications. Its first patent ever was published in 1989. It filed its patents most often in Japan and United States. Its main competitors in its focus markets telecommunications, audio-visual technology and optics are SURE BEST LTD, INNOVI TECHNOLOGIES LTD and INTERNAT CALLOPHONE CORP.

Patent filings in countries

World map showing HOSOI YUJIs patent filings in countries
# Country Total Patents
#1 Japan 57
#2 United States 1

Patent filings per year

Chart showing HOSOI YUJIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hosoi Yuji 58
#2 Tanaka Masahide 51
#3 Hosoi Yoji 22
#4 Morimoto Masafumi 17
#5 Watanabe Yoshiaki 1
#6 Hosoi Teruko 1
#7 Toyama Yasutsune 1
#8 Hosoi Hiroki 1
#9 Hosoi Rieko 1
#10 Hashimoto Masaichi 1

Latest patents

Publication Filing date Title
JP2015002461A Stereo headphone
JP2014229991A Earphone
JP2014187616A Stereo earphone
JP2014158215A Stereo earphone
JP2014116755A Stereo earphone, and method of using earphone
JP2013042562A Cellular phone
JP2014103441A Mobile phone
JP2014093680A Mobile phone
JP2014086806A Sound signal output device and hearing device
JP2014082635A Cellular phone
JP2014060532A Mobile phone
JP2014053803A Cellular phone
JP2014033380A Mobile phone, and cartilage conduction vibration source device
JP2014027518A Cartilage conduction vibration source device and hearing device
JP2014014025A Portable telephone and hearing device
JP2014011681A Mobile phone
JP2014007520A Headset
JP2014003479A Hearing device
JP2014003400A Mobile phone
JP2013247528A Mobile phone and mobile phone auxiliary device