Inventor
HAYAKAWA KIYOHARU
JP30 patents
⚠️ This page may combine multiple inventors who share the name “HAYAKAWA KIYOHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BROTHER IND LTD
21 patentsUS5639220AJun 17, 1997
Pump with inlet and outlet simultaneously exposed to pump chamber and method of operating same
BROTHER IND LTD84 citations96
US4864356ASep 5, 1989
Exposure device for image recording apparatus
BROTHER IND LTD22 citations82
US4905036AFeb 27, 1990
Image forming process and system, including heating step or device for increased density of images
BROTHER IND LTD7 citations74
US4894680AJan 16, 1990
Image recording apparatus
BROTHER IND LTD7 citations74
US4945374AJul 31, 1990
Pressure developing device
BROTHER IND LTD8 citations73
US8007071B2Aug 30, 2011
Image forming apparatus and information recording medium
BROTHER IND LTD3 citations63
US7712864B2May 11, 2010
Apparatus and method for maintaining recording head
BROTHER IND LTD4 citations63
US4958781ASep 25, 1990
Cassette for photo-sensistive recording medium
BROTHER IND LTD2 citations63
US4956649ASep 11, 1990
Image recording apparatus forming photomasking pattern on photosensitive medium
BROTHER IND LTD4 citations63
US4912506AMar 27, 1990
Image recording apparatus having exposure unit
BROTHER IND LTD2 citations63
US4908653AMar 13, 1990
Exposure system for image recording apparatus
BROTHER IND LTD2 citations63
US4974937ADec 4, 1990
Color filter unit
BROTHER IND LTD5 citations62
US4965592AOct 23, 1990
Image processing apparatus for reproducing images on projector screen and photosensitive medium
BROTHER IND LTD3 citations62
US4878083AOct 31, 1989
Pressure developing device in image recording apparatus
BROTHER IND LTD2 citations62
US4901103AFeb 13, 1990
Image recording apparatus using pressure sensitive sheet
BROTHER IND LTD4 citations61
US4878084AOct 31, 1989
Method and device for feeding sheet in image recording apparatus
BROTHER IND LTD3 citations61
US5089838AFeb 18, 1992
Pressure developing device
BROTHER IND LTD1 citations52
US5049920ASep 17, 1991
Photocopying method and apparatus
BROTHER IND LTD1 citations52
US4908652AMar 13, 1990
Image recording apparatus having upper and lower sections separable from each other at medium exposing path
BROTHER IND LTD1 citations52
US4870451ASep 26, 1989
Image recording apparatus
BROTHER IND LTD1 citations52
US4866473ASep 12, 1989
Thermal fixing device for use in recording apparatus
BROTHER IND LTD0 citations52
TOYODA CHUO KENKYUSHO KK
6 patentsUS4574264AMar 4, 1986
Thin film oxygen sensor with microheater
TOYODA CHUO KENKYUSHO KK53 citations96
US4510036AApr 9, 1985
Limiting electric current type oxygen sensor with heater and limiting electric current type oxygen concentration detecting device using the same
TOYODA CHUO KENKYUSHO KK61 citations96
US4500412AFeb 19, 1985
Oxygen sensor with heater
TOYODA CHUO KENKYUSHO KK63 citations96
US4595485AJun 17, 1986
Limiting electric current type oxygen sensor
TOYODA CHUO KENKYUSHO KK46 citations92
US4661234AApr 28, 1987
Air-fuel ratio sensor and apparatus using the same
TOYODA CHUO KENKYUSHO KK21 citations82
US4576705AMar 18, 1986
Apparatus with polarographic sensor to detect concentrations of plurality of gas components
TOYODA CHUO KENKYUSHO KK14 citations74