Inventor
KOYAMA KATSUMI
21 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA KATSUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TGK CO LTD
11 patentsUS7028713B2Apr 18, 2006
Switching valve
TGK CO LTD22 citations92
US7117895B2Oct 10, 2006
Switching valve
TGK CO LTD11 citations84
US6783110B2Aug 31, 2004
Proportional solenoid valve
TGK CO LTD18 citations83
US6532764B1Mar 18, 2003
Degree of supercooling control type expansion valve
TGK CO LTD19 citations83
US6390441B2May 21, 2002
Solenoid operated pilot valve
TGK CO LTD18 citations83
US6152178ANov 28, 2000
Four-way directional control valve
TGK CO LTD13 citations74
US6860294B2Mar 1, 2005
Four-way switching valve
TGK CO LTD10 citations73
US7117889B2Oct 10, 2006
Three-way valve
TGK CO LTD5 citations62
US7069949B2Jul 4, 2006
Four-way switching valve
TGK CO LTD2 citations62
US6823897B2Nov 30, 2004
Four-way switching valve
TGK CO LTD6 citations62
US6883545B2Apr 26, 2005
Three-way switching valve
TGK CO LTD0 citations52
AMADA CO LTD
4 patentsUS4831862AMay 23, 1989
Multistep bending machine
AMADA CO LTD38 citations92
US4486841ADec 4, 1984
Bending press
AMADA CO LTD27 citations88
US4282738AAug 11, 1981
Method and apparatus for adjusting stroke length of a ram for presses
AMADA CO LTD13 citations70
US4803372AFeb 7, 1989
Line position detecting apparatus for detecting a V-shaped indent
AMADA CO LTD6 citations57