Inventor
SHIBUYA YOSHIYUKI
JP26 patents
⚠️ This page may combine multiple inventors who share the name “SHIBUYA YOSHIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DAIKIN IND LTD
22 patentsUS6682576B1Jan 27, 2004
Air filter medium, process of producing filter medium, air filter pack for air filters, and air filter unit for air filters
DAIKIN IND LTD60 citations95
US6416562B1Jul 9, 2002
Air filter medium, air filter pack and air filter unit comprising the same, and method for producing air filter medium
DAIKIN IND LTD61 citations95
US6261979B1Jul 17, 2001
Filter medium and air filter unit using the same
DAIKIN IND LTD69 citations93
US9707504B2Jul 18, 2017
Composition having PTFE as main component, mixed powder, material for molding, filtering medium for filter, air filter unit, and a method for manufacturing a porous membrane
DAIKIN IND LTD7 citations83
US7387700B2Jun 17, 2008
Method for preparing filtering material
DAIKIN IND LTD9 citations83
US5104561AApr 14, 1992
Process for preparing carbide fine particles
DAIKIN IND LTD7 citations73
US4900464AFeb 13, 1990
Particles containing iron carbide
DAIKIN IND LTD6 citations73
US10265661B2Apr 23, 2019
Mixed powder and material for molding having PTFE as main component, and drawn porous body
DAIKIN IND LTD2 citations72
US5151206ASep 29, 1992
Acicular iron carbide particulate material and process for producing same
DAIKIN IND LTD10 citations72
US4842759AJun 27, 1989
Acicular process for producing particulate material
DAIKIN IND LTD14 citations72
US10265654B2Apr 23, 2019
Filtering medium for air filter, filter pack, air filter unit, and method for producing filtering medium for air filter
DAIKIN IND LTD4 citations71
US7097682B2Aug 29, 2006
Ventilation filter medium for container, and container and container cap equipped with ventilation filter medium
DAIKIN IND LTD6 citations62
US5660927AAug 26, 1997
Acicular metal iron fine particles, process for preparing same, magnetic coating composition and magnetic recording medium containing same
DAIKIN IND LTD2 citations62
US5552072ASep 3, 1996
Coated acicular fine particulate materials, processes for preparing same and use thereof
DAIKIN IND LTD6 citations62
US5205950AApr 27, 1993
Process for preparing iron carbide fine particles
DAIKIN IND LTD5 citations62
US4457955AJul 3, 1984
Process for producing magnetizable particles
DAIKIN IND LTD6 citations62
US12427459B2Sep 30, 2025
Air filter medium, air filter pack, and air filter unit
DAIKIN IND LTD0 citations52
US5346758ASep 13, 1994
Magnetic coating composition and magnetic recording medium
DAIKIN IND LTD0 citations52
US10688448B2Jun 23, 2020
Porous body, polymer electrolyte membrane, filter material for filter, and filter unit
DAIKIN IND LTD0 citations50
US10406471B2Sep 10, 2019
Filter medium for air filter, filter pack, air filter unit, and method for producing filter medium for air filter
DAIKIN IND LTD0 citations50
US10226730B2Mar 12, 2019
Filter medium for air filter, filter pack, air filter unit, and method for producing filter medium for air filter
DAIKIN IND LTD0 citations50
US10537836B2Jan 21, 2020
Filter medium for air filter, filter pack, air filter unit and method for producing the filter medium for air filter
DAIKIN IND LTD0 citations39