Learn more

NATSUME OPTICAL CORP

Overview
  • Total Patents
    22
  • GoodIP Patent Rank
    238,798
About

NATSUME OPTICAL CORP has a total of 22 patent applications. Its first patent ever was published in 2002. It filed its patents most often in Japan, Australia and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets electrical machinery and energy, medical technology and measurement are ALBER GMBH, LEE IL YEUL and CHANGSHU PINGFANG WHEELCHAIR CO LTD.

Patent filings in countries

World map showing NATSUME OPTICAL CORPs patent filings in countries

Patent filings per year

Chart showing NATSUME OPTICAL CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ishikawa Takeji 14
#2 Ishikawa Takeharu 4
#3 Ishida Akira 2
#4 Ban Minokichi 2
#5 Omichi Yuta 1
#6 Kitamura Katsuhiro 1
#7 Imamura Yoichi 1
#8 Nakatsui Hisashi 1
#9 Imamura Shuichi 1
#10 Matsuda Joji 1

Latest patents

Publication Filing date Title
JP2017149039A Laser joining device
JP2014240826A Surface shape measurement instrument or wavefront aberration measurement instrument
JP2014219372A Surface shape measuring apparatus
JP2010133745A Lens inspection system
JP2008044597A Caster device
JP2008086267A Weeding tool
JP2008054797A Leg frame expansion and contraction mechanism for wheelchair
JP2008024210A Caster device
JP2008023109A Seat section of wheelchair and wheelchair
JP2007222978A Polishing device
JP2007216342A Polisher
JP2007216326A Polisher
JP2006305682A Polishing device and method
JP2006002808A Travel amount adjusting device
AU2003272984A1 Function transporting apparatus
WO2004010564A1 Dynamo-electric machine
JP2004337516A Legless chair
JP2004147425A Rotating electric machine
JP2003289658A Rotary electric machine
JP2004056974A Rotary electric machine