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Toshio Yokoyama
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Hirakata-Shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Construction machine
Patent number
7,466,337
Issue date
Dec 16, 2008
Komatsu Ltd.
Hiroshi Sawada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Travel motor hydraulic control system for a construction machine
Patent number
6,474,063
Issue date
Nov 5, 2002
Komatsu Ltd.
Hiroshi Sawada
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Vehicle having apparatus for monitoring forward portion of blade an...
Patent number
6,470,606
Issue date
Oct 29, 2002
Komatsu Ltd.
Yuuichi Nagahiro
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Apparatus for controlling straight excavating operation with hydrau...
Patent number
5,598,648
Issue date
Feb 4, 1997
Kabushiki Kaisha Komatsu Seisakusho
Yukio Moriya
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Hydraulically-operated equipment for construction machinery
Patent number
5,365,737
Issue date
Nov 22, 1994
Komatsu Ltd.
Yukio Moriya
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Teaching and playback method for work machine
Patent number
5,274,557
Issue date
Dec 28, 1993
Kabushiki Kaisha Komatsu Seisakusho
Yukio Moriya
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Hydraulic apparatus for construction machines
Patent number
5,197,860
Issue date
Mar 30, 1993
Kimio Nishida
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Apparatus for controlling hydraulic pumps for construction machine
Patent number
5,176,504
Issue date
Jan 5, 1993
Kabushiki Kaisha Komatsu Seisakusho
Yukio Moriya
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Confluence valve circuit of a hydraulic excavator
Patent number
5,148,676
Issue date
Sep 22, 1992
Kabushiki Kaisha Komatsu Seisakusho
Yukio Moriya
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Operation control device
Patent number
5,029,067
Issue date
Jul 2, 1991
Kabushiki Kaisha Komatsu Seisakusho
Kimio Nishida
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Patents Applications
last 30 patents
Information
Patent Application
Construction machine
Publication number
20030085995
Publication date
May 8, 2003
Hiroshi Sawada
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Travel motor hydraulic control system for a construction machine
Publication number
20020029566
Publication date
Mar 14, 2002
Hiroshi Sawada
B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information
Patent Application
Hydraulic excavating mobile machine
Publication number
20020011013
Publication date
Jan 31, 2002
Hiroshi Sawada
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING