Seiko Epson Corporation

Atsuya Hirabayashi

Kunio Tabata

Noritaka Ide

Atsushi Oshima

Hiroyuki Yoshino

Yasuhiro Ono

Kazuaki Uchida

Hideki Kojima

Yoshiyuki Tanaka

Takeshi Seto

Hajime Miyazaki

Nobuhisa Nomoto

Yasuharu Hashimoto

Masahide Nakagawa

Hirokazu Sekino

Takahiro Matsuzaki

Daisuke Kawakami

A recording apparatus includes: a recording unit that performs a recording by ejecting a liquid on a medium; a carriage that includes the recording unit and is movable in a width direction; a casing that has the carriage therein and constitutes an external appearance of the apparatus; an adapter that is mounted on an upper portion of the recording unit and accommodates the liquid to be supplied to the recording unit; at least one liquid accommodating unit that supplies the liquid to the adapter through a tube and includes a filling port into which the liquid can be filled; and a waste liquid receiving unit that receives the liquid discharged as a waste liquid during a maintenance operation of the recording unit, in which the casing has a cover for covering both the liquid accommodating unit and the waste liquid receiving unit.

Recording apparatus

A power generation unit includes a deforming member (a beam) adapted to deform while switching a deformation direction, a first piezoelectric device provided to the deforming member (the beam), a second piezoelectric device provided to the deforming member (the beam), an inductor electrically connected to the first piezoelectric device, a switch disposed between the first piezoelectric device and the inductor, and a control section adapted to detect a voltage generated in the second piezoelectric device, and if the voltage detected has a level one of equal to and higher than a predetermined level, electrically connect the first piezoelectric device and the inductor to each other using the switch.

Power generation unit, electronic apparatus, transportation device, and method of controlling power generation unit

A fluid ejection device system includes: a fluid ejecting unit configured to change a volume of a fluid chamber to thereby eject fluid from a nozzle provided at a distal end of a fluid ejection pipe connected to the fluid chamber; a fluid supplying unit connected to the fluid ejecting unit by a connection tube and configured to supply the fluid to the fluid chamber; a control unit configured to control operation of the fluid ejecting unit and the fluid supplying unit; and a stand configured to hold at least a part of the fluid ejecting unit, and when it is detected that the fluid ejecting unit is held in the stand, the control unit controls at least one of the fluid ejecting unit and the fluid supplying unit to thereby execute a predetermined discharge operation for discharging the fluid in the fluid chamber.

Fluid ejection device system and medical apparatus

A fluid ejection device includes a pulsation generator which converts a fluid into a pulsed fluid, a fluid supply unit (supply pump) which supplies the fluid to the pulsation generator, an ejection tube which has an ejection opening communicating with the pulsation generator, a suction tube into which the ejection tube is inserted with play, a suction channel provided between the suction tube and the ejection tube, a suction opening provided at an end of the suction channel in a vicinity of the ejection opening, and a suction unit (suction pump) which sucks fluid in such a manner that the fluid introduced from the suction opening passes through the suction channel. The ejection opening is held by an inner circumferential part of the suction opening. According to this structure, vibration of the ejection tube in the vicinity of the ejection opening can be reduced.

Fluid ejection device and medical instrument

A fluid supply apparatus which supplies fluid to a medical apparatus includes: a pump mechanism including a first pump capable of a suction operation of the fluid after a feeding operation of the fluid, and a second pump capable of a suction operation of the fluid during the feeding operation and a feeding operation of the fluid during the suction operation; a flow path which includes an elastic member and which communicates with the first pump and the second pump and supplies the fluid to the medical apparatus; and a flow path deforming unit which deforms a part of the flow path. The flow path deforming unit starts first deformation of the flow path before the first pump switches from the feeding operation to the suction operation, and completes the first deformation and starts second deformation of the flow path during the feeding operation by the second pump.

Fluid supply apparatus

Fluid is pressurized and supplied to a fluid chamber with a fluid pressurizing and supplying unit. The pressurized fluid within the fluid chamber is ejected through an injection nozzle by reduction of the volume of the fluid chamber caused by applying a driving voltage to a volume varying unit. In applying the driving voltage to the volume varying unit, the effect imposed on fluid injection by pressure fluctuations of the fluid pressurized and supplied to the fluid chamber is compensated by changing the voltage waveform of the driving voltage. When the pressure of the supply flow amount is decreased to a pressure lower than a predetermined pressure, the time intervals of the driving waveform are corrected. The maneuverability of a fluid injection device does not deteriorate even when the pressure of the fluid pressurized and supplied to the fluid chamber fluctuates.

Liquid ejection device and medical instrument including liquid ejection device

A power generation unit includes a deforming member adapted to deform while switching a deformation direction, a piezoelectric device provided to the deforming member, a displacement detection section adapted to detect that the deforming member is displaced beyond a predetermined level, an inductor electrically connected to the piezoelectric device, a switch disposed between the piezoelectric device and the inductor, and a control section adapted to set the piezoelectric device and the inductor to an electrically conductive state via the switch if the displacement detection section detects that the deforming member is displaced beyond the predetermined level.

Power generation unit, battery, electronic apparatus, transportation device, and method of controlling power generation unit

A fluid injection system includes: a first apparatus which is attached to a human body and injects a fluid into the human body; and a second apparatus which is attached to a wrist of the human body and remotely controls the first apparatus, wherein the second apparatus includes an entry section accepting an entry of an operation command to the first apparatus and a first communicating section transmitting the operation command to the first apparatus, and the first apparatus includes a second communicating section receiving the operation command, a storing section storing the fluid, and a transporting section transporting the fluid from the storing section and injecting the fluid into the human body based on the operation command.

Fluid injection system

A cooling device is provided. The cooling device may include a pump chamber, an inlet flow passage that is used for allowing a fluid to flow into the pump chamber, an outlet flow passage that allows the fluid to flow out from the pump chamber, a pump that includes a fluid resistance element that opens or closes the inlet flow passage between the inlet flow passage and the pump chamber, a circulation flow passage that is used for circulating the fluid from the outlet flow passage to the inlet flow passage, and a first volume adjusting chamber that adjusts pressure of the fluid flowing into the pump chamber.

Cooling device and projector

A power generation unit includes a beam (a deforming member) having a piezoelectric element and deforming while switching a deformation direction, an inductor electrically connected to the piezoelectric element, a switch disposed between the piezoelectric element and the inductor, a memory (a storage section) adapted to store switching period information (information of a characteristic vibration period of the beam), and a control circuit (a control section) adapted to control one of a timing at which the switch is set to a conductive state and a timing at which the switch is set to a nonconductive state in accordance with the switching period information stored in the memory.

A power-generating apparatus includes: a deformation member that is provided with a first piezoelectric device and deformed while switching a deformation direction; an amount of deformation detection unit that detects an amount of deformation of the deformation member; a pair of electrodes provided on the first piezoelectric device; a switch provided between the pair of electrodes; and a switch control unit that controls the switch to cause short-circuit between the pair of electrodes for a predetermined period when the amount of deformation is equal to or more than a predetermined amount.

Power generating apparatus

A power generation unit includes a first piezoelectric device having a pair of electrodes, a second piezoelectric device stacked on the first piezoelectric device, a switch electrically connected between the pair of electrodes, a current detection section adapted to detect a current generated in the second piezoelectric device, and a control section adapted to control the switch, and the control section electrically connects the switch for a predetermined period in at least either one of a case in which the current detected by the current detection section reaches a level one of equal to and higher than a first reference value or a case in which the current reaches a level one of equal to and lower than a second reference value.

Power generation unit, electronic apparatus, transportation device, battery, and method of controlling power generation unit

A power generation unit includes: a deforming member adapted to deform while switching a deformation direction; a piezoelectric device provided to the deforming member, and having a pair of electrodes; a displacement sensor adapted to detect a deformation amount of the deforming member, and then output deformation amount information as information related to the deformation amount; an inductor electrically connected to the piezoelectric device; a switch disposed between the piezoelectric device and the inductor; and a switch control section adapted to control the switch so as to set the pair of electrodes to a shorted state for a predetermined period of time when the deformation amount exceeds a predetermined level.

Growing community of inventors

Chino, Japan

Atsuya Hirabayashi