Inventor
NAITO KAZUFUMI
JP37 patents
⚠️ This page may combine multiple inventors who share the name “NAITO KAZUFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ISHIDA SCALE MFG CO LTD
21 patentsUS4623813ANov 18, 1986
Load sensor using a piezoelectric S.A.W. device
ISHIDA SCALE MFG CO LTD76 citations94
US5117929AJun 2, 1992
Weighing apparatus with means for correcting effects of vibrations
ISHIDA SCALE MFG CO LTD34 citations93
US4951765AAug 28, 1990
Load detector circuit
ISHIDA SCALE MFG CO LTD23 citations92
US4705126ANov 10, 1987
Signal processing circuit and weighing apparatus incorporating same
ISHIDA SCALE MFG CO LTD25 citations92
US4677422AJun 30, 1987
Multiple input signal high-speed analog-digital converter circuit
ISHIDA SCALE MFG CO LTD47 citations92
US4624331ANov 25, 1986
Weight sensor with vibration error correction
ISHIDA SCALE MFG CO LTD36 citations92
US5052505AOct 1, 1991
Load cell
ISHIDA SCALE MFG CO LTD45 citations91
US4926359AMay 15, 1990
Weight sensing apparatus
ISHIDA SCALE MFG CO LTD26 citations91
US4739305AApr 19, 1988
Double integral type A/D converter
ISHIDA SCALE MFG CO LTD22 citations82
US4727947AMar 1, 1988
Span adjustment system and method
ISHIDA SCALE MFG CO LTD22 citations82
US4694920ASep 22, 1987
Combination weighing system and method
ISHIDA SCALE MFG CO LTD23 citations81
US4850442AJul 25, 1989
Zero-point adjustment of weighing device
ISHIDA SCALE MFG CO LTD21 citations80
US5184520AFeb 9, 1993
Load sensor
ISHIDA SCALE MFG CO LTD16 citations74
US4722406AFeb 2, 1988
Electronic weigher with compensated test signal
ISHIDA SCALE MFG CO LTD10 citations74
US4626956ADec 2, 1986
Electromagnetic feeder drive control apparatus
ISHIDA SCALE MFG CO LTD7 citations74
US4620178AOct 28, 1986
Double integrating-type analog-to-digital converter
ISHIDA SCALE MFG CO LTD10 citations74
US4545445AOct 8, 1985
Span adjusting system of electronic weighing apparatus
ISHIDA SCALE MFG CO LTD15 citations74
US4484146ANov 20, 1984
Differential amplifier containing a low-pass filter
ISHIDA SCALE MFG CO LTD19 citations74
US5756938AMay 26, 1998
Weight measuring apparatus
ISHIDA SCALE MFG CO LTD8 citations73
US4771836ASep 20, 1988
Control for a weighing system
ISHIDA SCALE MFG CO LTD16 citations72
US4475608AOct 9, 1984
Weight detection circuit for a load cell scale
ISHIDA SCALE MFG CO LTD2 citations63
ISHIDA SEISAKUSHO
14 patentsUS5929390AJul 27, 1999
Load cell weighing apparatus using the same
ISHIDA SEISAKUSHO73 citations94
US6013879AJan 11, 2000
Multi-point cell type weighing machines
ISHIDA SEISAKUSHO24 citations92
US5756943AMay 26, 1998
Load cell
ISHIDA SEISAKUSHO39 citations92
US5539158AJul 23, 1996
Load cell and weighing apparatus including a strain sensor welded to a strain inducing device
ISHIDA SEISAKUSHO31 citations92
US5512713AApr 30, 1996
Load cell having a hollow and a strain gauge formed on a substrate attached inside the hollow
ISHIDA SEISAKUSHO38 citations92
US5440077AAug 8, 1995
Combined weighting and displacement sensor and weighing apparatus using the same
ISHIDA SEISAKUSHO28 citations92
US6034334AMar 7, 2000
Method of and means for correcting effects of floor vibrations on weight signals from a weighing machine
ISHIDA SEISAKUSHO24 citations89
US6545230B2Apr 8, 2003
Combinational weighing or counting apparatus
ISHIDA SEISAKUSHO17 citations81
USRE36411ENov 30, 1999
Weighing apparatus with means for correcting effects of vibrations
ISHIDA SEISAKUSHO6 citations74
US5515737AMay 14, 1996
Weighing apparatus
ISHIDA SEISAKUSHO16 citations74
US5369875ADec 6, 1994
Method of manufacturing strain sensors
ISHIDA SEISAKUSHO9 citations73
US6684487B2Feb 3, 2004
Method of producing a load cell
ISHIDA SEISAKUSHO10 citations71
US5656800AAug 12, 1997
Accurate and responsive weighing apparatus with drift compensation
ISHIDA SEISAKUSHO8 citations69
US5569887AOct 29, 1996
Load cell for detecting vibrations and weighing device comprising same
ISHIDA SEISAKUSHO6 citations63