Kabushiki Kaisha Toshiba

Satake Corporation

Mechano Transformer Corporation

Toshiba Memory Corporation

Kuroda Pneumatics Limited

Kioxia Corporation

Nabtesco Corporation

Toshiba America Information Systems, Inc.

Toshiba Memory Coiporation

Takafumi Ito

Sze Keat Chee

Toshiro Higuchi

Satoru Satake

Tadashi Matsushita

Toshitada Hirata

Takeshi Yano

Hiroyuki Sakamoto

Tomoyuki Miyamoto

Teruhiko Takeuchi

Masahiro Egi

Hidetaka Tsuji

Norimasa Ikeda

Masazumi Hara

Takeshi Kamima

Yoshinori Kawawa

Robert Ogburn

Satoshi Uchida

Kenji Suzuki

Shogo Suzuki

Takahiro Doi

Nobuyoshi Ikeda

Yasuharu Mitoma

Masaaki Sadamaru

Kenichi Ide

Yuichi Asakawa

Hiroshi Tanimoto

Yoichi Kawamura

Kensuke Adachi

Tadahiro Aihara

Hironori Arii

Motoshi Kurihara

Tadanobu Inaashi

Yoshinobu Mizuno

Kunio Ebihara

Takayuki Ikeda

Fumio Oyama

Walt Mazur

One aspect of the present disclosure provides a first bearing including an inner ring, an outer ring, and cylindrical rollers. The inner ring includes: an insertion groove formed in a lower surface for inserting the cylindrical rollers between an inner raceway surface and an outer raceway surface; a blocking plug configured to block the insertion groove, the blocking plug having a part of the inner raceway surface formed thereon; and a bolt for securing the blocking plug in the insertion groove. In the mating surface of the blocking plug contacted with the bottom surface of the insertion groove, when the shortest length between the bolt insertion hole and the inner raceway surface is shown as La, and the shortest length between the bolt insertion hole and the inner peripheral surface is shown as Lb, the shortest lengths La and Lb satisfy the following formula: La/Lb>0.65.

Bearing, strain wave gear device, and industrial robot

A piezoelectric valve including an actuator that drives a valve body; a valve seat plate including a valve seat that is adapted to be positioned in contact with and away from the valve body, and a discharge passage; and a body case that houses the valve seat plate, in which the actuator includes a proximal portion fixed to the valve seat plate, a piezoelectric element having one end portion connected to an attachment face of the proximal portion and extending in a first longitudinal direction, a support portion integrally formed with the proximal portion, the support portion being arranged side-by-side with the piezoelectric element and extending in a second longitudinal direction crossing the first longitudinal direction, an operating portion connected to another end portion of the piezoelectric element and to a distal end portion of the support portion.

Piezoelectric valve

In an optical sorter that includes an optical detection unit to detect a to-be-sorted material at a detection position, a determining unit to determine a to-be-sorted material to be removed, based on a detection result by the optical detection unit, and an air-jetting unit to blow off and remove the to-be-sorted material to be removed using jet air of a compressed gas, based on a determination result by the determining unit, the air-jetting unit includes a piezoelectric valve to perform valve opening and closing by driving a valve disc utilizing displacement of a piezoelectric element, and a valve driving unit to apply a drive voltage to the piezoelectric element, and the valve driving unit controls the drive voltage applied to the piezoelectric element in accordance with the to-be-sorted material to be removed to thus control a jet-air pressure of the compressed gas for removing the to-be-sorted material.

Optical sorter

Provided is a piezoelectric valve in which the valve is opened/closed utilizing a displacement of a laminated piezoelectric element, including: a valve main body having a gas pressure chamber that receives compressed gas supplied externally; and an actuator having a valving element, the laminated piezoelectric element that generates a driving force required for operating the valving element as the displacement, and a displacement enlarging mechanism that enlarges the displacement of the laminated piezoelectric element to be acted on the valving element, the actuator being disposed in the valve main body, in which a surface of the laminated piezoelectric element is coated with silicone in a state in which the laminated piezoelectric element is integrated into the actuator.

Piezoelectric valve and method of manufacturing the piezoelectric valve

Provided is a piezoelectric actuator that can reduce a risk of air leakage due to weakening of pressing force of a valve element against a valve seat surface and airtightness. The piezoelectric actuator is used for a piezoelectric valve that opens and closes a valve utilizing displacement of a laminated piezoelectric element. The piezoelectric actuator includes: a valve element; a laminated piezoelectric element that generates a driving force, required for operation of the valve element, as a displacement; and a displacement enlargement mechanism that enlarges a displacement of a laminated piezoelectric element and causes the enlarged displacement to act on the valve element. In the piezoelectric actuator, a surface of the valve element to be in contact with a valve seat of the piezoelectric valve is made flat and smooth in a state in which a tensile load is applied to the laminated piezoelectric element.

Piezoelectric actuator, piezoelectric valve, and method of manufacturing piezoelectric actuator

A method of controlling a storage device including a command terminal, a plurality of data terminals, and a clock terminal, including receiving a clock signal through the clock terminal; outputting a first status data through the data terminals in accordance with only one of a rising edge and a falling edge of the clock signal in a first transfer mode; outputting data through the data terminals in accordance with both the rising edge and the falling edge of the clock signal in a second transfer mode; and receiving and responding to commands via the command terminal in accordance with only one of a rising edge and a falling edge of the clock signal while outputting data through the data terminals in accordance with both the rising edge and the falling edge of the clock signal in the second transfer mode.

Method for transferring data on a memory card in synchronism with a rise edge and a fall edge of a clock signal

To provide an optical grain sorter that can reduce the proportion of non-defective grains blown off collaterally, and even in a case in which a plurality of defective grains or the like fall down in a state overlapping each other, can blow off all the defective grains or the like. The optical granular matter sorter includes a control unit configured to control an ejection time of a compressed gas from an air ejecting unit based on a result of detection obtained by an optical detecting unit, in which the control unit has a comparing unit configured to compare a defect detection time for an object to be sorted by the optical detecting unit and a single-granular matter passage set time set in advance, and a calculating unit configured to multiply the defect detection time by a predetermined coefficient based on a result of comparison obtained by the comparing unit to calculate the ejection time, and in a case in which the defect detection time is less than or equal to the single-granular matter passage set time as the result of comparison obtained by the comparing unit, the calculating unit multiplies the defect detection time by a small coefficient as compared to a case in which the defect detection time exceeds the single-granular matter passage set time to calculate the ejection time, and controls the ejection time of the compressed gas from the air ejecting unit based on a result of calculation.

Optical granular matter sorter

A piezoelectric valve includes: a valve main part including a gas pressure chamber receiving compressed gas supplied from outside; a plate inside the valve main part, and an actuator fixed to the plate and inside the valve main part, which is a case with an opening on a front surface. The plate includes a gas discharge path and a valve seat coming into contact with a valve element of the actuator opening and closing the gas discharge path. A lid member that closes the opening of the case has a gas discharge opening communicating with the gas discharge path of the plate; is welded and fixed to a front surface of the plate, where the gas discharge path opens, on an annular welded part surrounding the gas discharge opening; and is welded and fixed to an end surface of the case on an annular welded part on the outer peripheral part.

Piezoelectric valve and method for manufacturing piezoelectric valve

A method of controlling a storage device attached to a host device, includes transferring data with respect to the host device in synchronism with a rise edge and a fall edge of a clock signal in first and second transfer modes. In response to a check function command, status data indicating that the storage device supports the second transfer mode is output through a data terminal. In response to a set function command, the storage device is set into the second transfer mode. The check function and the set function are switched in response to a first value and a second value of a mode bit in the check function command.

Method for transferring data on a memory card in synchonism with a rise edge and a fall edge of a clock signal

A memory card is attached to a host device, and includes a data control circuit which transfers data with respect to the host device in synchronism with a rise edge and a fall edge of a clock signal.

Memory card and host device thereof

A piezoelectric valve, having superior responsiveness during valve opening and capability to stabilize gas supply at an early stage, includes a gas pressure chamber receiving compressed gas and an exhaust path discharging the compressed gas from the gas pressure chamber; a valve disc placed in the gas pressure chamber to open and close the exhaust path; a piezoelectric element generating a driving force for operation of the valve disc, as a displacement; a displacement magnifying mechanism magnifying the displacement of the piezoelectric element and applying the magnified displacement to the valve disc; and driving means including a signal generator generating a signal including a first prepulse, a second prepulse, and a main pulse, applies a drive voltage to the piezoelectric element using the signal generated by the signal generator, as an input signal to a drive circuit, and drives and opens the valve disc by expanding the piezoelectric element.

Piezoelectric valve, method for driving piezoelectric valve, and optical particulate separator equipped with air-jet means using piezoelectric valve

The present invention has an object to provide a blowing apparatus wherein a piezoelectric element is unlikely to cause insulation deterioration leading to burnout during use of the blowing apparatus. The blowing apparatus of the present invention blows compressed gas supplied from a compressed gas supply unit through a nozzle hole of a nozzle unit by opening a piezoelectric valve. The blowing apparatus comprises a humidity sensor detecting a humidity of the compressed gas inside a flow path unit, and a humidity control unit comparing a detected value of the humidity detected by the humidity sensor with a set value. If the humidity of the compressed gas inside the flow path unit detected by the humidity sensor is equal to or greater than the set value, the humidity control unit replaces the compressed gas inside the flow path unit with the compressed gas whose humidity is less than the set value and which is supplied from the compressed gas supply unit, before starting to use the blowing apparatus.

Blowing apparatus including piezoelectric valve and optical granular material sorting machine using the blowing apparatus

The present invention intends to provide an optical sorting machine which can improve the collection rate of non-defective products without increasing the size of the machine. The optical sorting machine of the present invention includes a granular object feed unit including storage means that stores an object to be sorted, and transfer means that transfers the object to be sorted from the storage means; an optical sorting unit including optical detection means that detects an object to be sorted falling along a predetermined trajectory from an end portion of the transfer means, determination means that determines a type of the object to be sorted based on a detection signal from the optical detection means, an ejector that removes an object to be sorted determined as a specific type from the predetermined falling trajectory based on a determination result by the determination means, and a discharge hopper having a first discharge passage provided at a falling position of the object to be sorted falling along the predetermined trajectory, a second discharge passage provided at a falling position of the object to be sorted removed from the predetermined falling trajectory, and a third discharge passage formed between the first discharge passage and the second discharge passage; and conveyance means that conveys an object to be sorted discharged from the third discharge passage of the discharge hopper in the optical sorting unit to the storage means of the granular object feed unit.

Optical sorting machine

Growing community of inventors

Ome, Japan

Takafumi Ito