Kubota Corporation

Sumitomo Chemical Company, Limited

Mitsubishi Tanabe Pharma Corporation

Ube Industries, Inc.

Tanabe Seiyaku Company, Limited

Kyodo Chemical Company Limited

Tetsuo Yamaguchi

Ryoma Iwase

Hitoshi Azuma

Shinji Ohara

Yoshihiko Kuroshita

Michita Kono

Shuichi Kanagawa

Isao Kurimoto

Tamaki Ishii

Haruki Okamura

Naoki Inui

Norimi Nakamura

Kanako Fukuda

Tomonari Tsuchida

Mitsugu Kobayashi

Teruhisa Koyama

Eizo Okino

Akio Matsui

Motohiko Samizo

Fumitoshi Kojima

Takafumi Yamagami

Ken-ichi Kudo

Junki Ando

Akira Takata

Takao Teshima

Shinya Tanaka

Takashi Sanada

Manji Sasaki

Kenji Tsujihara

Kazuhiro Takahara

Susumu Umemoto

Hideo Nagasaki

Katsumi Ito

Tetsu Fukui

Hidetoshi Hana

Yoshifumi Horiuchi

Toshio Kano

Shigeru Tanaka

Yoshihiko Kitagawa

Chinehito Ebina

Seiji Sagawa

Hiroki Yamamoto

Masakatsu Yoshimura

Hiroshi Hagimori

Motoaki Ohashi

Hideki Ushirogochi

Akio Inamori

Yutaka Yamaguchi

Tomiki Hashiyama

Naoyuki Harada

Kunihiko Ozaki

Isamu Kawai

Noriyuki Nakanishi

Minoru Fukuda

Shin-ichi Yachigo

Kouji Fujiwara

Tadao Adachi

Komei Yamawaki

Takashi Yasumi

Tatsuyuki Takahashi

Michiaki Yoshidomi

Takudai Matsuda

Yoshihiko Kitawaga

Hiroyuki Kawanishi

Akinori Okamoto

Tohru Takebe

A work vehicle includes a controller configured or programmed to include an input revolutions number calculator to calculate an input revolutions number, and a vehicle speed controller switchable between a first vehicle-speed control mode and a second vehicle-speed control mode. In the first vehicle-speed control mode, the vehicle speed controller is configured or programmed to control a vehicle speed of the work vehicle based on a value detected by an input rotation sensor. In the second vehicle-speed control mode, the vehicle speed controller is configured or programmed to control the vehicle speed based on a value calculated by the input revolutions number calculator.

Work vehicle

An electromagnetic valve control device includes a current gear ratio obtainer to obtain a current gear ratio as a ratio of an output revolutions number of a driver and an output revolutions number of a transmission, a current electric current value obtainer to obtain a current electric current value as a value of an electric current to be inputted to a first electromagnetic valve or a second electromagnetic valve, and a switching controller to, based on the current electric current value and a gear ratio difference as a difference between a target gear ratio and the current gear ratio, perform electromagnetic valve switching control to switch between use of the first electromagnetic valve to control a pump swash plate and use of the second electromagnetic valve to control the pump swash plate.

Electromagnetic valve control device and work vehicle

A continuously variable powertrain device for a work vehicle includes a hydraulic static transmission to output a continuously shifted motive power while continuously varying a velocity of a motive power received from an engine, a planetary transmission to receive the motive power from the engine and the continuously shifted motive power and to output a compound motive power, a pressure detector to detect a hydraulic pressure in a closed circuit of the hydraulic static transmission, a planetary clutch mechanism to switch a shift level of the planetary transmission, and a powertrain controller to control actuation of the hydraulic static transmission and the planetary transmission based on a shift command.

Continuously variable powertrain device for work vehicle and work vehicle including the same

A continuously variable powertrain device for a work vehicle includes a continuously variable transmission to output a continuously shifted motive power while continuously varying a speed of a motive power received from an engine, a planetary transmission to receive the motive power from the engine and the continuously shifted motive power and to output a compound motive power, a planetary clutch to switch a shift level of the planetary transmission a forward-reverse direction switch to receive the compound motive power and to output either a forward motive power or a reverse motive power, rotation detectors, and a powertrain controller.

A work vehicle includes a restrainer vehicle speed setter to set a restrainer vehicle speed, and a switch restrainer to permit switching of the forward/backward travel switching device while a detected vehicle speed is lower than the restrainer vehicle speed and prevent switching of the forward/backward travel switching device while the detected vehicle speed is a high speed not lower than the restrainer vehicle speed.

An electromagnetic valve control device includes a control signal generator to, through feedback control involving an environmental coefficient, generate a control signal intended for at least one electromagnetic valve and corresponding to a target electric current value, a coefficient determiner to determine an environmental coefficient during a learning period from a start of a driver operation to an end of a predetermined time, and an operation limiter to limit respective operations of the at least one electromagnetic valve and a gear transmission during the learning period.

The present invention provides a process for preparing a compound represented by formula (VII), which comprises reacting a compound represented by formula (VI) with a malonic acid derivative in the presence of a base and an asymmetric catalyst in a two layer solvent system of hydrophobic solvent and water, (wherein Rand Reach independently represents a protecting group for carboxyl group).

Method for producing optically active pyrrolidine compounds

A work vehicle includes a lifting mechanism to control at least one of a height and a posture of a work machine connected to the work vehicle. The lifting mechanism is able to control at least one of the height and the posture by using a hydraulic drive. The work vehicle includes an oil-temperature acquirer to acquire an oil temperature to be used for the hydraulic drive, a maximum oil amount setter to set a maximum oil amount according to the oil temperature acquired by the oil-temperature acquirer, the maximum oil amount being a maximum value of a supply amount of oil used to drive the hydraulic drive, and a hydraulic drive controller to control the hydraulic drive below the maximum oil amount set by the maximum oil amount setter.

A work vehicle includes an engine, a speed changing apparatus that includes a hydrostatic stepless speed changing mechanism and is configured to subject motive power transmitted from the engine to speed changing and output the motive power, a travelling apparatus configured to travel on the motive power received from the speed changing apparatus, a speed detector configured to detect a speed of the travelling apparatus, a pressure detector configured to detect a hydraulic pressure in a closed circuit of the hydrostatic stepless speed changing mechanism, and a controller.

A vehicle includes; a vehicle body on which the motor is mounted; an apparatus provided to the traveling vehicle body and also driven by drive power from the motor; an apparatus that performs work on a field; an apparatus that changes the speed of drive power input from the motor and transmits the drive power; a tool that includes speed change stages and is also capable of speed change operation of the speed change apparatus by human operation; a controller that, when the number of speed change stages is changed based on human operation of the speed change operation tool, outputs to the speed change apparatus a speed change command for each predefined number of stages and is also capable of outputting the speed change command for each defined speed change interval; and an operation mechanism that enables adjustment of the speed change interval.

A working vehicle includes a traveling clutch to be switched between an engaging state and a disengaging state, a brake to brake the traveling device according to an operation of a brake operator, and a controller to perform a braking control to perform the braking, and an auto-switching controller to switch the traveling clutch from the engaging state to the disengaging state. The controller performs a first processing to switch the traveling clutch from the engaging state to the disengaging state when the brake operator is operated in a case where the auto-switching control is valid and a vehicle speed is less than a threshold, and a second processing to prevent the traveling clutch from being switched from the engaging state to the disengaging state even when the brake operator is operated in a case where the vehicle speed is equal to or higher than the threshold.

Working vehicle

A working vehicle includes a PTO shaft to transmit power of a propulsion shaft, a PTO clutch including a first rotor to be rotated by the power of the propulsion shaft, a second rotor to transmit the power to the PTO shaft, a press to be moved by a pressure of operation fluid between an engaging side on which the first rotor is engaged with the second rotor and a disengaging side, and a PTO brake to brake the PTO shaft when the press is positioned on the disengaging side, a control valve to control the pressure of the operation fluid to be applied to the PTO clutch, a rate setter to set a reducing rate at which the pressure of the operation fluid is reduced, and a controller to control the control valve based on the reducing rate.

A working vehicle includes a first hydraulic clutch connected to the first traveling shaft, a second hydraulic clutch connected to the first traveling shaft separately from the first hydraulic clutch, a first gear mechanism to transmit, to a second traveling shaft, power from the first hydraulic clutch when the first hydraulic clutch is engaged and not to transmit, to the second traveling shaft, power from the first hydraulic clutch when the first hydraulic clutch is disengaged, and a second gear mechanism to transmit, to the second traveling shaft, power from the second hydraulic clutch when the second hydraulic clutch is engaged and not to transmit, to the second traveling shaft, power from the second hydraulic clutch when the second hydraulic clutch is disengaged.

The present invention provides a process for preparing a compound represented by formula (VII), which comprises reacting a compound represented by formula (VI) with a malonic acid derivative in the presence of a base and an asymmetric catalyst in a two layer solvent system of hydrophobic solvent and water. (wherein Rand Reach independently represents a protecting group for carboxyl group).

A compound of the formula: wherein ring X is benzene or pyridine; Ris substituted alkyl; Ris optionally substituted aryl or optionally substituted heterocyclic group; Ris hydrogen or alkyl; Ris hydrogen, halogen or alkyl; Ris hydrogen or alkyl; Rand Rare the same or different and each hydrogen or halogen, or a pharmaceutically acceptable salt thereof, which is useful as Iblocker effective for preventing or treating cardiac arrhythmia such as atrial fibrillation.

Indazole acrylic acid amide compound

Growing community of inventors

Osaka, Japan

Tetsuo Yamaguchi