Osamu Tomikawa

Person

Adachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Construction machine management apparatus and construction machines...
- Patent number 7,493,112
- Issue date Feb 17, 2009
- Hitachi Construction Machinery Co., Ltd.
- Hiroyuki Adachi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Construction machine management apparatus and construction machines...
- Patent number 7,228,125
- Issue date Jun 5, 2007
- Hitachi Construction Machinery Co., Ltd.
- Hiroyuki Adachi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Working machine, trouble diagnosis system of working machine, and m...
- Patent number 7,079,982
- Issue date Jul 18, 2006
- Hitachi Construction Machinery Co., Ltd.
- Hiroshi Ogura
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Security system of construction machinery
- Patent number 6,998,957
- Issue date Feb 14, 2006
- Hitachi Construction Machinery Co., Ltd.
- Koichi Shibata
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Burglarproof device for hydraulic machine
- Patent number 5,632,190
- Issue date May 27, 1997
- Hitachi Construction Machinery Co., Ltd.
- Kazuhiro Sunamura
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hydraulic control system for construction machine
- Patent number 5,267,440
- Issue date Dec 7, 1993
- Hitachi Construction Machinery Co., Ltd.
- Kazunori Nakamura
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Prime mover rotational speed control system
- Patent number 5,265,569
- Issue date Nov 30, 1993
- Hitachi Construction Machinery Co., Ltd.
- Masaki Egashira
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Anti-vibration apparatus in a hydraulic system for boom cylinder of...
- Patent number 5,048,296
- Issue date Sep 17, 1991
- Hitachi Construction Co., Ltd.
- Kazuhiro Sunamura
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Engine remote control system
- Patent number 5,036,817
- Issue date Aug 6, 1991
- Hitachi Construction Machinery Co., Ltd.
- Osamu Tomikawa
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Apparatus for controlling rotational speed of prime mover of constr...
- Patent number 4,955,344
- Issue date Sep 11, 1990
- Hitachi Construction Machinery Co., Ltd.
- Akira Tatsumi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
Construction machine management apparatus and construction machines...
- Publication number 20070202861
- Publication date Aug 30, 2007
- Hitachi Construction Machinery Co., Ltd.
- Hiroyuki Adachi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Working machine, trouble diagnosis system of working machine, and m...
- Publication number 20040186687
- Publication date Sep 23, 2004
- Hiroshi Ogura
- G05 - CONTROLLING REGULATING
Information Patent Application
Construction machine management apparatus and construction machines...
- Publication number 20040147250
- Publication date Jul 29, 2004
- Hiroyuki Adachi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Security system of construction machinery
- Publication number 20030137398
- Publication date Jul 24, 2003
- Koichi Shibata
- B60 - VEHICLES IN GENERAL

Osamu Tomikawa

Person

Patents Grantslast 30 patents

Construction machine management apparatus and construction machines...

Construction machine management apparatus and construction machines...

Working machine, trouble diagnosis system of working machine, and m...

Security system of construction machinery

Burglarproof device for hydraulic machine

Hydraulic control system for construction machine

Prime mover rotational speed control system

Anti-vibration apparatus in a hydraulic system for boom cylinder of...

Engine remote control system

Apparatus for controlling rotational speed of prime mover of constr...

Patents Applicationslast 30 patents

Construction machine management apparatus and construction machines...

Working machine, trouble diagnosis system of working machine, and m...

Construction machine management apparatus and construction machines...

Security system of construction machinery