Assignee
DAIDO STEEL CO LTD
US342 patents
Top patents by PatentIndex Score
US6334351B1Jan 1, 2002
Metal pipe expander
DAIDO STEEL CO LTD178 citations98
US4963508AOct 16, 1990
Method of making an epitaxial gallium arsenide semiconductor wafer using a strained layer superlattice
DAIDO STEEL CO LTD158 citations98
US6284071B1Sep 4, 2001
Titanium alloy having good heat resistance and method of producing parts therefrom
DAIDO STEEL CO LTD59 citations96
US6405761B1Jun 18, 2002
Expandable metal-pipe bonded body and manufacturing method thereof
DAIDO STEEL CO LTD126 citations95
US4928154AMay 22, 1990
Epitaxial gallium arsenide semiconductor on silicon substrate with gallium phosphide and superlattice intermediate layers
DAIDO STEEL CO LTD74 citations95
US4434006AFeb 28, 1984
Free cutting steel containing controlled inclusions and the method of making the same
DAIDO STEEL CO LTD58 citations95
US6337459B1Jan 8, 2002
Multi-layered anti-coking heat resisting metal tube and the method for manufacturing thereof
DAIDO STEEL CO LTD67 citations94
US5244517ASep 14, 1993
Manufacturing titanium alloy component by beta forming
DAIDO STEEL CO LTD61 citations94
US4902359AFeb 20, 1990
Wear-resistant titanium or titanium-alloy member and a method for manufacturing the same
DAIDO STEEL CO LTD74 citations94
US5831252ANov 3, 1998
Methods of bonding titanium and titanium alloy members by high frequency heating
DAIDO STEEL CO LTD29 citations93
US5423494AJun 13, 1995
Pet rope winder
DAIDO STEEL CO LTD29 citations93
US5132750AJul 21, 1992
Light-emitting diode having light reflecting layer
DAIDO STEEL CO LTD67 citations93
US6699593B2Mar 2, 2004
Corrosion-resistant metallic member, metallic separator for fuel cell comprising the same, and process for production thereof
DAIDO STEEL CO LTD29 citations92
US6417488B1Jul 9, 2002
Internal metal pipe welding apparatus and monitoring system
DAIDO STEEL CO LTD27 citations92
US6403983B1Jun 11, 2002
Quantum well type light-emitting diode
DAIDO STEEL CO LTD21 citations92
US6184493B1Feb 6, 2001
Vertical diffusion bonding apparatus
DAIDO STEEL CO LTD24 citations92
US6156134ADec 5, 2000
Bonding method of dual phase stainless steel
DAIDO STEEL CO LTD27 citations92
US6098866AAug 8, 2000
Diffusion bonding apparatus for pipes
DAIDO STEEL CO LTD32 citations92
US6048601AApr 11, 2000
Soft magnetic alloy powder for electromagnetic and magnetic shield, and shielding members containing the same
DAIDO STEEL CO LTD65 citations92
US5975405ANov 2, 1999
Diffusion bonding method and diffusion bonding apparatus
DAIDO STEEL CO LTD29 citations92
US5951789ASep 14, 1999
Heat resisting alloy for exhaust valve and method for producing the exhaust valve
DAIDO STEEL CO LTD19 citations92
US5922274AJul 13, 1999
Titanium alloy having good heat resistance and method of producing parts therefrom
DAIDO STEEL CO LTD18 citations92
US5699955ADec 23, 1997
Method of bonding Ti-alloy members
DAIDO STEEL CO LTD36 citations92
US5402025AMar 28, 1995
Rotor provided with a ring-shaped magnet
DAIDO STEEL CO LTD30 citations92
US5122319AJun 16, 1992
Method of forming thin-walled elongated cylindrical compact for a magnet
DAIDO STEEL CO LTD26 citations92
US4991447AFeb 12, 1991
Torque detecting device
DAIDO STEEL CO LTD25 citations92
US4810465AMar 7, 1989
Free-cutting Ti alloy
DAIDO STEEL CO LTD34 citations92
US4790516ADec 13, 1988
Reactor for iron making
DAIDO STEEL CO LTD25 citations92
US4326842AApr 27, 1982
Device for the pulverization of radioactive wastes
DAIDO STEEL CO LTD47 citations92
US4279646AJul 21, 1981
Free cutting steel containing sulfide inclusion particles with controlled aspect, size and distribution
DAIDO STEEL CO LTD30 citations92
US6432159B1Aug 13, 2002
Magnetic mixture
DAIDO STEEL CO LTD22 citations91
US6332361B1Dec 25, 2001
Method for evaluating bonding properties of a metallic pipe
DAIDO STEEL CO LTD28 citations91
US6194088B1Feb 27, 2001
Stainless steel coated with intermetallic compound and process for producing the same
DAIDO STEEL CO LTD29 citations91
US4694508ASep 22, 1987
Fingertip protectors for work gloves
DAIDO STEEL CO LTD61 citations91
US4275287AJun 23, 1981
Plasma torch and a method of producing a plasma
DAIDO STEEL CO LTD43 citations91
US6579628B2Jun 17, 2003
Multi-layered anti-coking heat resistant metal tube and method for manufacture thereof
DAIDO STEEL CO LTD20 citations90
US6139660AOct 31, 2000
High corrosion resisting alloy for diesel engine valve and method for producing the valve
DAIDO STEEL CO LTD16 citations90
US4614159ASep 30, 1986
Powdered coal burner
DAIDO STEEL CO LTD37 citations90
US3973950AAug 10, 1976
Low carbon calcium-sulfur containing free-cutting steel
DAIDO STEEL CO LTD37 citations90
US6378760B1Apr 30, 2002
Method for manufacturing joint of carbon steel pipes suitable for expansion and expanding method
DAIDO STEEL CO LTD25 citations89
US5638398AJun 10, 1997
Method and apparatus for joining new electrode to consumed electrode of electric furnace
DAIDO STEEL CO LTD22 citations89
US5279688AJan 18, 1994
Steel shaft material which is capable of being directly cut and induction hardened and a method for manufacturing the same
DAIDO STEEL CO LTD23 citations89
US4962291AOct 9, 1990
Apparatus for production metal powder having a shielded runner nozzle gate
DAIDO STEEL CO LTD28 citations89
US4479535AOct 30, 1984
Recuperative radiant tube
DAIDO STEEL CO LTD27 citations89
US6007923ADec 28, 1999
Titanium alloy, member made of the titanium alloy and method for producing the titanium alloy member
DAIDO STEEL CO LTD21 citations88
US5855699AJan 5, 1999
Method for manufacturing welded clad steel tube
DAIDO STEEL CO LTD45 citations88
US5027880AJul 2, 1991
Tundish changing apparatus in a continuous casting installation
DAIDO STEEL CO LTD22 citations88
US4596953AJun 24, 1986
Apparatus for scanning a material for detection of flaws and having material axis deviation detection
DAIDO STEEL CO LTD36 citations88
US5281176AJan 25, 1994
Contact member with composite sintered metal paste strip having 1-5 wt % carbon diffusion bonded therein
DAIDO STEEL CO LTD30 citations87
US4773766ASep 27, 1988
Method of measuring temperatures and portable recorder for storing temperature data
DAIDO STEEL CO LTD28 citations87
Showing the top 50 of 342 patents by PatentIndex Score.