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RYOSAN CO LTD

Overview
  • Total Patents
    24
About

RYOSAN CO LTD has a total of 24 patent applications. Its first patent ever was published in 1998. It filed its patents most often in Japan. Its main competitors in its focus markets semiconductors are KOCON CHRISTOPHER BOGUSLAW, SUZHOU KEYI SKY SEMICONDUCTOR TECHNOLOGIES INC and Suzhou hanchen digital multimedia co ltd.

Patent filings in countries

World map showing RYOSAN CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 24

Patent filings per year

Chart showing RYOSAN CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Semiconductors

Focus technologies

# Technology
#1 Semiconductor devices

Top inventors

# Name Total Patents
#1 Fukagawa Yoshio 16
#2 Kiyohara Hiroshi 4
#3 Mikami Takashi 1
#4 Mihashi Koichi 1
#5 Fukazawa Yoshifumi 1
#6 Okuwaki Mikio 1
#7 Suzuki Masao 1
#8 Furuya Satoru 1
#9 Nishibori Tsukasa 1
#10 Takahashi Shinobu 1

Latest patents

Publication Filing date Title
JP2013131779A Heat sink and manufacturing method thereof
JP2013131780A Heat sink and manufacturing method thereof
JP2012256779A Heat sink
JP2012174837A Heat sink and method of manufacturing the same
JP2011161474A Method of manufacturing heat sink
JP2011114206A Fin integrated heat sink
JP2011077318A Spring fixation means for heat sink, pressing means for the same, and heat sink fixation device
JP2010251248A Heat sink for led lighting and method of manufacturing the same
JP2010050409A Heat sink with spring fixture
JP2006108247A Liquid-cooled heat sink
JP2004111690A Heat sink having improved heat radiating effect
JP2004103675A Heat sink with spring fixture
JP2002359330A Heat sink clamping fitment, heat sink and method for fixing heat sink
JP2002120033A Manufacturing method of binding contact type heat sink
JP2002299528A Corrugated fin heat sink manufacturing device
JP2002299864A Corrugated fin type heat sink
JP2002124605A Manufacture of heat sink
JP2002110873A Fixed fin heat sink
JP2002041286A Automatic conversion system of source program and method
JP2001077254A Steel heat sink