Inventor
KATO YOSHIKI
JP70 patents
⚠️ This page may combine multiple inventors who share the name “KATO YOSHIKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
24 patentsUS5815343ASep 29, 1998
Magnetic recording medium, process for producing the same and magnetic recording system
HITACHI LTD77 citations96
US5388020AFeb 7, 1995
Magnetic disk having improved surface configuration and magnetic disk unit including same
HITACHI LTD61 citations96
US5202810AApr 13, 1993
Magnetic disk having an improved surface configuration
HITACHI LTD76 citations96
US6057021AMay 2, 2000
Magnetic recording media and magnetic recording system using the same
HITACHI LTD42 citations95
US5750230AMay 12, 1998
Magnetic recording media and magnetic recording system using the same
HITACHI LTD44 citations95
US6303205B1Oct 16, 2001
Magnetic disk including protective layer having surface with protrusions, and substrate therefor
HITACHI LTD24 citations92
US5504646AApr 2, 1996
Magnetic disk including protective layer having surface with protusions and magnetic disk apparatus including the magnetic disk
HITACHI LTD29 citations92
US5364655ANov 15, 1994
Simultaneous double sides polishing method
HITACHI LTD48 citations92
US5353182AOct 4, 1994
Magnetic disk unit having magnetic disks and a magnetic head with a head slider which is in contact with surfaces of the magnetic disk
HITACHI LTD31 citations92
US5411630AMay 2, 1995
Magnetic disk manufacturing method
HITACHI LTD29 citations91
US4430387AFeb 7, 1984
Base plate for magnetic recording disc
HITACHI LTD46 citations90
US5285343AFeb 8, 1994
Magnetic disk with surface protective layer having convex portions and magnetic disk apparatus including such a magnetic disk
HITACHI LTD26 citations89
US4762534AAug 9, 1988
Method of producing magnetic disk
HITACHI LTD17 citations81
US5280401AJan 18, 1994
Magnetic recording medium, method for producing same and magnetic recording apparatus
HITACHI LTD11 citations74
US5930073AJul 27, 1999
Magnetic disk including protective layer having surface with magnetic disk including protrusions, and magnetic disk apparatus including the magnetic disk
HITACHI LTD9 citations73
US5690838ANov 25, 1997
Magnetic recording medium and process for producing same
HITACHI LTD8 citations73
US5680285AOct 21, 1997
Magnetic disk having improved surface configuration and magnetic disk unit including same
HITACHI LTD10 citations73
US5549211AAug 27, 1996
Method of producing magnetic disk
HITACHI LTD5 citations73
US5123933AJun 23, 1992
Method of producing magnetic disk
HITACHI LTD4 citations73
US5028242AJul 2, 1991
Lapping member and lapping tape
HITACHI LTD9 citations73
US4842618AJun 27, 1989
Method of producing magnetic disk
HITACHI LTD10 citations73
US5656349AAug 12, 1997
Magnetic disk, method of manufacturing the same and magnetic disk apparatus including the magnetic disk
HITACHI LTD12 citations72
US4238341ADec 9, 1980
Composition of magnetic recording media
HITACHI LTD15 citations72
US4229312AOct 21, 1980
Method of manufacturing a paint composite for magnetic films
HITACHI LTD8 citations72
DENSO CORP
19 patentsUS10562376B2Feb 18, 2020
Refrigeration cycle device
DENSO CORP11 citations86
US10723203B2Jul 28, 2020
Refrigeration cycle device
DENSO CORP12 citations85
US10899195B2Jan 26, 2021
Refrigeration cycle device
DENSO CORP7 citations83
US11498391B2Nov 15, 2022
Air conditioner
DENSO CORP8 citations81
US11833887B2Dec 5, 2023
Vehicular air conditioner
DENSO CORP5 citations73
US11787258B2Oct 17, 2023
Refrigeration cycle device
DENSO CORP4 citations73
US11408615B2Aug 9, 2022
Refrigeration cycle device
DENSO CORP2 citations73
US11299014B2Apr 12, 2022
Refrigeration cycle device
DENSO CORP6 citations73
US11029098B2Jun 8, 2021
Device temperature regulator
DENSO CORP3 citations73
US10950909B2Mar 16, 2021
Device temperature regulator
DENSO CORP3 citations73
US10723199B2Jul 28, 2020
Vehicular heat management device
DENSO CORP2 citations73
US10400662B2Sep 3, 2019
Vehicular heat management device
DENSO CORP4 citations73
US10989447B2Apr 27, 2021
Refrigeration cycle device
DENSO CORP2 citations72
US10837348B2Nov 17, 2020
Thermal management device for vehicle
DENSO CORP5 citations72
US10717341B2Jul 21, 2020
Vehicular heat management system
DENSO CORP4 citations72
US11014430B2May 25, 2021
Refrigeration cycle device
DENSO CORP1 citations62
US10906141B2Feb 2, 2021
Method for manufacturing device temperature control device and method for filling working fluid
DENSO CORP1 citations62
US10752089B2Aug 25, 2020
Air conditioner
DENSO CORP1 citations62
US12049122B2Jul 30, 2024
Refrigeration cycle device
DENSO CORP1 citations61
MITSUBISHI HEAVY IND LTD
5 patentsUS6853106B2Feb 8, 2005
Brushless motor
MITSUBISHI HEAVY IND LTD24 citations92
US9312799B2Apr 12, 2016
Motor control device and motor control method
MITSUBISHI HEAVY IND LTD4 citations73
US9438156B2Sep 6, 2016
Motor control device and motor control method
MITSUBISHI HEAVY IND LTD2 citations63
US9350282B2May 24, 2016
Motor control device and motor control method
MITSUBISHI HEAVY IND LTD2 citations63
US12046779B2Jul 23, 2024
Fuel cell power generation system for treating exhaust fuel gas
MITSUBISHI HEAVY IND LTD1 citations61
SONY CORP
1 patentASAHI INTECC CO LTD
1 patentShowing the top 50 of 70 patents by PatentIndex Score.