Seiko Instruments Inc

Sii Micro Parts Ltd.

Hironobu Itoh

Keitaro Koroishi

Hideharu Onodera

Tomoyuki Yoshino

Yutaka Makishima

Akihiro Iino

Masao Kasuga

Makoto Suzuki

Kazutaka Yuzurihara

Yukihiro Nakayama

Haruhiko Hasegawa

Tatsumi Yamada

Kenji Takano

Noritoshi Yuura

Hiroaki Matsumura

Tomoyuki Yoshida

A structure includes an enveloping layer formed on one of a circular outer surface or a flat outer surface having irregularities, wherein the enveloping layer includes an outer circumferential surface layer formed by thermally fusing a thermoplastic elastomer. The enveloping layer has a first material layer provided on one of the outer surfaces and formed from an amorphos plastic, and a second material layer provided on the first material layer and formed from a thermoplastic elastomer selected from the group consisting of styrenes, olefins, polyvinyl chlorides, urethanes and polyesters.

Structure with thermoplastic elastomer enveloping layer, bearing, and drive module

Provided is a blank structure for a ring member of a bearing in which a cut target surface after stainless steel is forged has uniform surface characteristics, and highly accurate cutting processing is enabled. A blank (), which is processed to an outer race () and an inner race () of a bearing, includes: a cylindrical portion () formed by forging a stainless-steel material, and having an inner circumferential surface () and an outer circumferential surface () entirely being surface eutectic carbides fragmented beds; and a clamp portion () provided to one end portion side of the cylindrical portion ().

Blank for a ring member of a bearing, manufacturing method for the same, manufacturing method for a ring member of a bearing, and bearing

An electrochemical cell has a container housing a separator and a pair of electrodes impregnated with an electrolyte. The container has a base member having a bottom part and a side part disposed on a top surface of the bottom part along an outer rim of the bottom part. A metallic conductive terminal has first and second opposite surfaces penetrating through inner and outer sides of the base member. The first surface of the conductive terminal is disposed on the top surface of the bottom part of the base member. The second surface of the conductive terminal is disposed in contact with one of the pair of the electrodes. A metallic frame member has first and second opposite surfaces, with the first surface being joined to an entire rim of a top surface of the side part of the base member. A metallic cover member is joined to an entire rim of the second surface of the frame member.

Electrochemical cell and fabrication method of the same

A package for a communication device has a base member having a first end, a second end opposite the first end, and an interior space disposed between the first and second ends for accommodating a communication device. A conductive terminal extends through the base member from the interior space and to the exterior of the base member. A frame member is connected to the base member and has a peripheral portion protruding from the first end of the base member. A cover member is connected to the protruding peripheral portion of the frame member.

Packages for communication devices

A piezoelectric actuator is formed in a manner which enhances the identifying function of markings provided thereon, and minimizes the influence on the markings when an electrode pattern on the piezoelectric actuator is shifted. The piezoelectric actuator has a piezoelectric element, an electrode pattern formed thereon, and at least one identifying marking formed on the electrode pattern, each identifying marking having a shape comprising multiple sides and being formed at a specific location of the electrode pattern for use in identifying a characteristic of the electrode pattern. In one embodiment, the piezoelectric element has a disk shape, the electrode pattern comprises a plurality of electrodes provided on an inner side of the piezoelectric element, selected electrodes being connected to each other in a desired pattern, and the identifying marking is formed on the electrode pattern proximate a peripheral edge of the piezoelectric-element and has at least three straight sides so that the area of the identifying marking is based on the length of its sides rather than a radius. Thus, shifting of the identifying marking with respect to the curved peripheral edge of the disk-shaped piezoelectric element results in reduction in area of the identifying marking on a linear basis rather than based on a squared value of a radius. In another embodiment, a plurality of identifying markings are arranged in a spaced-apart relation on the piezoelectric element.

Piezoelectric actuator and method of compensating direction thereof

A method is provided for manufacturing a piezoelectric actuator having a piezoelectric element and a lead wire for supplying a drive signal to the piezoelectric element. A melt material is immersed into a fusing agent. A quantity of the material and the fusing agent is supplied to a transfer plate and then adjusted. A preselected quantity of the melt material and the fusing agent is then transferred preselected quantity of the melt material and the fusing agent is supplied from the transfer tool to the lead wire. The melt material is then welded on the lead wire and on the piezoelectric element to thereby connect the lead wire to the piezoelectric element.

Method of manufacturing piezoelectric actuator and method of joining lead wire to piezoelectric element of piezoelectric actuator

An ultrasonic motor in which a voltage is applied to a piezoelectric element by using a lead board. To fabricate the motor in a simplified manner, it is so constructed that a plurality of conductive patterns on the lead board are joined to a plurality of electrodes formed on the piezoelectric element by solder or the like, the piezoelectric element and the lead board are prevented from contacting each other by bending the conductive patterns to form a gap, then a voltage is applied to the lead board, thereby realizing the drive.

Growing community of inventors

Chiba, Japan

Hironobu Itoh