Seiko Epson Corporation

Takao Miyazawa

Juri Kato

Yujiro Nomura

Katsunori Yamazaki

Kiyoshi Tsujino

Akira Nakajima

Masatoshi Yonekubo

Noboru Asauchi

Mitsuhiro Yamamura

Toshio Arimura

Mizuho Ueno

A workpiece processing method includes a carry-in step of carrying a workpiece into the field of view of a magnifier, a work step of performing predetermined work on the workpiece based on an image provided via the magnifier, and a carry-out step of carrying the workpiece out of the field of view of the magnifier. A robot performs at least one of the carry-in step and the carry-out step as well as the work step.

Workpiece processing method

A vibration motor includes a first vibrating body including a first projection and a second vibrating body including a second projection, the first vibrating body and the second vibrating body receiving electric power and vibrating to generate a driving force and transmitting the driving force to a driven section, a first coil spring configured to urge the first vibrating body and the second vibrating body in a driving direction and restrict positions of the first vibrating body and the second vibrating body in the driving direction, and a case housing the first vibrating body, the second vibrating body, and the first coil spring. The first vibrating body, the second vibrating body, and the first coil spring are arranged in the driving direction. The number of first coil springs is smaller than the number of first and second vibrating bodies in the urging direction.

Vibration motor and driving device

A piezoelectric resonator includes a vibrating part having a pair of principal surfaces in an obverse-reverse relationship, and a side surface configured to couple the pair of principal surfaces to each other, and a protruding part which is provided to the vibrating part, and is configured to transmit a drive force generated by a vibration of the vibrating part to a driven part, wherein the vibrating part has a pair of vibrating plates including a first vibrating plate and a second vibrating plate stacked on one another in afirst direction in which the pair of principal surfaces are arranged side by side, the first vibrating plate has a flexural vibrating piezoelectric element configured to flexurally vibrate the vibrating part in a third direction perpendicular to a second direction in which the driven part and the protruding part are arranged side by side in a plan view of the principal surfaces, either one or both of the first vibrating plate and the second vibrating plate have a stretching vibrating piezoelectric element configured to make the vibrating part perform a stretching vibration in the second direction, and the side surface is provided with a plurality of terminals electrically coupled to the flexural vibrating piezoelectric element and the stretching vibrating piezoelectric element.

Piezoelectric resonator and drive device

A sensor device includes a first electrode, a second electrode, and a functional element. The first electrode includes a porous body having holes in at least the vicinity of a surface of the first electrode, and includes a first metallic material in which either a first passivation film is formed on the surface or the first passivation film present on the surface is lost. The second electrode spaced apart from the first electrode includes a porous body having holes in at least the vicinity of a surface of the second electrode. The functional element is configured to measure a difference in electric potential between the first and second electrodes. A porosity of the first electrode and a porosity of the second electrode are different from each other. The sensor device is configured to measure a state of a site to be measured based on the difference in electric potential.

Sensor device

An integrated circuit apparatus includes transmitting circuits TXto TX, which output transmission signals with regard to channels CHto CHof an ultrasound transducer device which has a plurality of ultrasound transducer elements, and a switching circuit which performs a switching operation. The switching circuit is provided between a receiving circuit and output nodes NQto NQof the transmitting circuits TXto TX. Then, an operation is performed where the signal transfer of the transmission signal from the transmitting circuits TXto TXto the receiving circuit is set to be not transferred in a transmitting period. A switching operation is performed where the reception signals from the channels which are selected from among the channels CHto CHare output to the receiving circuit in a receiving period.

Integrated circuit apparatus, ultrasound measuring apparatus, ultrasound probe and ultrasound diagnosis apparatus

A sensor device includes a first electrode, a second electrode and a functional element. The first electrode includes a first metallic material in which either a first passivation film is formed on a surface thereof or the first passivation film present on the surface thereof is lost, in association with changes in an environment of a measurement site. The second electrode includes a second metallic material different from the first metallic material, the second electrode being spaced apart from the first electrode. The functional element is configured to measure a difference in electric potential between the first electrode and the second electrode that changes depending on presence or absence of the first passivation film.

Corrosion detection sensor device

A sensor device includes first and second electrodes, a coating film and a functional element. The first electrode includes a first metallic material in which either a first passivation film forms on a surface thereof or the first passivation film present on the surface thereof is lost, in association with changes in the pH of a measurement site. The second electrode includes a second metallic material different from the first metallic material, and is spaced apart from the first electrode. The coating film includes a third metallic material different from the first and second metallic materials. The coating film covers at least the first or second electrode. The functional element is configured to measure a difference in electric potential between the first and second electrodes that changes depending on presence or absence of each of the first passivation film and the coating film in association with the changes in pH.

An ultrasonic measurement device includes: an ultrasonic element array that has at least one reception column connected to a reception terminal, and equipped with ultrasonic elements for reception and that has at least one transmission column connected to a transmission terminal, and equipped with ultrasonic elements for transmission; a reception circuit that receives a signal from the reception terminal; and a transmission circuit that outputs a signal to the transmission terminal. The reception column and the transmission column are alternately arranged every column, or any multiple of columns in a scanning direction. The ultrasonic elements for reception and the ultrasonic elements for transmission are arranged along a orthogonal direction that is orthogonal to the scanning direction. The reception terminal is arranged at one end of the array in the orthogonal direction, and the transmission terminal is arranged at the other end of the array in that direction.

Ultrasonic measurement device, ultrasonic head unit, ultrasonic probe, and ultrasonic image device

A sensor device includes a first electrode, a second electrode and a functional element. The first electrode includes a porous body having a connecting hole where adjacent holes communicate with each other with the porous body being in at least the vicinity of a surface of the first electrode. The second electrode is spaced apart from the first electrode. The functional element is configured to measure a difference in electric potential between the first electrode and the second electrode. The sensor device is configured to measure a state of a site to be measured based on the difference in electric potential as measured by the functional element.

A sensor device includes a first electrode, a second electrode, a gap forming member and a functional element. The first electrode is composed of a first metallic material. The second electrode is spaced apart from the first electrode, and composed of a second metallic material. The gap forming member is arranged with a gap being formed between the gap forming member and a portion of a surface of the first electrode. The functional element is configured and arranged to measure a difference in electric potential between the first electrode and the second electrode so that a state of a measurement site to be measured is measured based on the difference in electric potential as measured by the functional element.

Corrosion detection sensor device having coating film and measurement method

A light-emitting device includes: light-emitting elements whose luminous energy is controlled according to a current value and a pulse width of a driving signal; a storage unit that stores first and second coefficients for every light-emitting element; a pulse width determining unit that determines the pulse width of the driving signal supplied to each light-emitting element on the basis of the first coefficient, a current value determining unit that determines a current value of the driving signal supplied to each light-emitting element on the basis of the second coefficient, a driving unit that supplies the driving signal having the current value determined by the current value determining unit within the determined pulse width determined, to the light-emitting element, and a coefficient determining unit that calculates the first coefficient based on target values of a light amount and first peak light amounts of one of the light-emitting elements, and calculates the second coefficient.

Light-emitting device, driving circuit, driving method, and electronic apparatus

A line head, includes a light-emitting element row, having a plurality of light-emitting elements arranged in a first direction; a plurality of feeding portions; a first power supply line for power supply, connected to a first feeding portion for a power supply of the feeding portions; and a second power supply line for ground, connected to a second feeding portion for a ground of the feeding portions. The light-emitting elements are respectively connected between the first power supply line and the second power supply line.

Line head and image forming device using the same

A light-emitting device includes a plurality of light-emitting elements, each emitting light with a light amount according to a driving signal, a storage unit that stores first gray-scale data for assigning a gray-scale value of each of the plurality of light-emitting elements, a data processing unit that generates second gray-scale data from the first gray-scale data stored in the storage unit for each light-emitting element such that, as the gray-scale value assigned by the first gray-scale data is large, a gray-scale value assigned by the second gray-scale data is made small, and a driving unit that causes the individual light-emitting elements to emit light in a first period upon supply of a driving signal according to the first gray-scale data stored in the storage unit, and causes the individual light-emitting elements to emit light in a second period different from the first period upon supply of a driving signal according to the second gray-scale data generated by the data processing unit.

Light-emitting device, driving circuit, driving method, electronic apparatus, and image forming apparatus

An exposure device includes a first light source column, a second light source column, and a light converger. A distance along a first direction between the center of a first light source of the first light source column and the center of a second light source of the second light source column, which is located to a second direction relative to the first light source, is larger than a distance along the first direction between the center of a third light source of the first light source column, which is located farther from an optical axis of the light converger than the first light source and the center of a fourth light source of the second light source column, which is located to the second direction relative to the third light source.

Growing community of inventors

Shimosuwa-machi, Japan

Takao Miyazawa