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Dive into the research topics where Osamu Tomikawa is active.

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Featured researches published by Osamu Tomikawa.


Archive | 1998

Hydraulic control system for construction machine

Kazunori Nakamura; Yusuke Kajita; Toichi Hirata; Genroku Sugiyama; Hiroshi Onoue; Hideaki Tanaka; Osamu Tomikawa; Masakazu Haga; Hiroshi Watanabe


Archive | 2002

Security system of construction machinery

Koichi Shibata; Kiyoshi Ono; Genroku Sugiyama; Osamu Tomikawa; Hiroyuki Adachi; Hideo Karasawa; Toichi Hirata; Hiroshi Watanabe


Archive | 2002

Working machine, trouble diagnosis system of working machine, and maintenance system of working machine

Hiroshi Ogura; Hiroshi Watanabe; Genroku Sugiyama; Hideo Karasawa; Yoshiyuki Umeno; Osamu Tomikawa; Shuichi Miura; Kiyoshi Ono; Yasushi Ochiai


Archive | 1989

Apparatus for controlling rotational speed of prime mover of construction machine

Akira Tatsumi; Toichi Hirata; Masaki Egashira; Osamu Tomikawa; Hiroshi Watanabe


Archive | 2007

Construction machine management apparatus and construction machines management system

Hiroyuki Adachi; Toichi Hirata; Genroku Sugiyama; Hiroshi Onoue; Hideo Karasawa; Koichi Shibata; Hiroshi Watanabe; Kiyoshi Ono; Osamu Tomikawa


Archive | 1990

Hydraulic system for boom cylinder of working apparatus

Kazuhiro Sunamura; Osamu Tomikawa; Toichi Hirata


Archive | 2001

Burglarproof device of construction machine

Hiroyuki Adachi; Hideo Karasawa; Kiyoshi Ono; Koichi Shibata; Genroku Sugiyama; Osamu Tomikawa; 修 富川; 清 小野; 玄六 杉山; 英男 柄澤; 浩一 柴田; 宏之 足立


Archive | 1996

Burglarproof device for hydraulic machine

Kazuhiro Sunamura; Osamu Tomikawa; Shigehiro Yoshinaga; Toichi Hirata


Archive | 2001

Mobile phone, program for mobile phone, construction machine compatible with mobile phone, and data transmission/reception method using mobile phone

Hiroyuki Adachi; Toichi Hirata; Hideo Karasawa; Kiyoshi Ono; Koichi Shibata; Genroku Sugiyama; Osamu Tomikawa; Hiroshi Watanabe; 修 富川; 清 小野; 東一 平田; 玄六 杉山; 英男 柄澤; 浩一 柴田; 洋 渡辺; 宏之 足立


Archive | 1996

Antitheft device for hydraulic machine

Toichi Hirata; Kazuhiro Sunamura; Osamu Tomikawa; Shigehiro Yoshinaga; 滋博 吉永; 修 富川; 東一 平田; 和弘 砂村

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Genroku Sugiyama

Hitachi Construction Machinery

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Hiroyuki Adachi

Hitachi Construction Machinery

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Masaki Egashira

Hitachi Construction Machinery

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Hiroshi Onoue

Hitachi Construction Machinery

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