Inventor
OGATA YASUNOBU
JP32 patents
⚠️ This page may combine multiple inventors who share the name “OGATA YASUNOBU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI METALS LTD
14 patentsUS4668310AMay 26, 1987
Amorphous alloys
HITACHI METALS LTD144 citations98
US5958284ASep 28, 1999
Ferrite magnet and method for producing same
HITACHI METALS LTD23 citations92
US4451876AMay 29, 1984
Switching regulator
HITACHI METALS LTD32 citations92
US4931619AJun 5, 1990
Glow plug for diesel engines
HITACHI METALS LTD26 citations87
US7906036B2Mar 15, 2011
Ferrite sintered magnet
HITACHI METALS LTD9 citations83
US5538657AJul 23, 1996
Method of producing ferrite magnet
HITACHI METALS LTD12 citations74
US6858156B2Feb 22, 2005
Ferrite magnet and both rotor and magnet roll comprising the same
HITACHI METALS LTD8 citations73
US6537463B2Mar 25, 2003
Resin-bonded magnet, its product, and ferrite magnet powder and compound used therefor
HITACHI METALS LTD11 citations73
US6383407B2May 7, 2002
Bonded magnet, magnet roll, a ferrite powder used therefor and method for producing same
HITACHI METALS LTD8 citations72
US6284150B1Sep 4, 2001
Bonded magnet, magnet roll, a ferrite powder used therefor and method for producing same
HITACHI METALS LTD11 citations72
US4581080AApr 8, 1986
Magnetic head alloy material and method of producing the same
HITACHI METALS LTD16 citations72
US4525222AJun 25, 1985
Method of heat-treating amorphous material
HITACHI METALS LTD7 citations72
US6737011B1May 18, 2004
Method for producing ferrite magnet
HITACHI METALS LTD4 citations62
US5032570AJul 16, 1991
Method for producing ceramic superconducting material using intermediate products
HITACHI METALS LTD5 citations60
RICOH CO LTD
7 patentsUS7970312B2Jun 28, 2011
Image forming apparatus
RICOH CO LTD2 citations63
US7962079B2Jun 14, 2011
Fixing device and image forming apparatus
RICOH CO LTD3 citations63
US10915040B2Feb 9, 2021
Toner container with an operating structure disposed on a first side, a shutter disposed on a second side, and a lock
RICOH CO LTD0 citations61
US7881635B2Feb 1, 2011
Image forming apparatus including a detachable convey-guiding member detachably attached to a fixed convey-guiding member fixed to a device main body
RICOH CO LTD4 citations61
US11231664B2Jan 25, 2022
Toner container having a shutter, a lever disposed on one side, and a pivoting portion on the other side which rotate together with a common shaft
RICOH CO LTD0 citations59
US10564572B2Feb 18, 2020
Toner container with an operating structure disposed on a first side, and a shutter disposed on a second side
RICOH CO LTD0 citations51
US10365584B2Jul 30, 2019
Toner container, developing device, process cartridge, and image forming apparatus that include a toner container contacting surface to contact with a developing device engagement releasing structure
RICOH CO LTD0 citations51
SUMITOMO ELECTRIC INDUSTRIES
3 patentsUS6302225B1Oct 16, 2001
Polycrystal diamond tool
SUMITOMO ELECTRIC INDUSTRIES101 citations97
US6261329B1Jul 17, 2001
Diamond sintered body having high strength and high wear resistance, and tool including the same
SUMITOMO ELECTRIC INDUSTRIES54 citations96
US6528159B1Mar 4, 2003
Sintered diamond tool and method for manufacturing the same
SUMITOMO ELECTRIC INDUSTRIES35 citations92
YOSHIDA TOMOFUMI
2 patentsUS9690231B2Jun 27, 2017
Toner container, developing device, process cartridge, and image forming apparatus that include an operating member to move a shutter for a toner outlet via a linking member
YOSHIDA TOMOFUMI2 citations71
US10025227B2Jul 17, 2018
Toner container, developing device, process cartridge, and image forming apparatus that include a toner container contacting surface to contact with a developing device engagement releasing structure
YOSHIDA TOMOFUMI0 citations50