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AKIYAMA SEIJI

Overview
  • Total Patents
    21
About

AKIYAMA SEIJI has a total of 21 patent applications. Its first patent ever was published in 1993. It filed its patents most often in Japan and United States. Its main competitors in its focus markets semiconductors, organic fine chemistry and basic materials chemistry are NEBRERA ESCOBAR JUAN, C I P COMPAGNIA ITALIANA PETRO and ROCKEFELLER INST FOR MEDICAL R.

Patent filings in countries

World map showing AKIYAMA SEIJIs patent filings in countries
# Country Total Patents
#1 Japan 20
#2 United States 1

Patent filings per year

Chart showing AKIYAMA SEIJIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Takizawa Tadashi 6
#2 Akiyama Seiji 5
#3 Morita Masayoshi 4
#4 Miyamoto Naoya 2
#5 Okabe Misako 1
#6 Hayakawa Toshihiro 1
#7 Kikuchi Yoshihito 1
#8 Ootsubo Saika 1
#9 Yokoyama Takamichi 1
#10 Nakamae Katsuyoshi 1

Latest patents

Publication Filing date Title
JP2011143806A Bicycle parking device
JP2011089301A Liftable bicycle parking machine
JP2008002177A Bicycle parking facility
JP2007112273A Bicycle parking unit
JP2005105550A Bicycle-parking space facility
JP2004217189A Bicycle parking facility of aluminum
JP2002227441A Bicycle parking facility
JP2001323675A Manual two-stage bicycle parking facilities
JP2001279944A Motorized two-story bicycle parking facilities
JP2001107590A Device for bonding, corrugated steel roof panel and corrugated roofing panel made from synthetic resin by single operation, for port such as bicycle parking space and multi-purpose port, carport, and rest station
JP2001010564A Bicycle parking facility
JP2000129947A Bicycle parking facility
JPH11210251A Bicycle packing area
JPH10306609A Multistage type bicycle parking facility
JPH10196151A Multi-stage parking facility for bicycle
JPH1061230A Two-wheeled vehicle lifting device
JPH1025917A Two-stage type bicycle parking facility
JPH09299958A Magnetic water treatment device
JPH073189A Insectproof coating material for lamp
JPH073217A Ultraviolet-absorbable transparent adhesive sheet