Seiko Instruments Inc

Akihiro Iino

Masao Kasuga

Kenji Suzuki

Makoto Suzuki

Takayuki Kosaka

Takashi Yamanaka

Haruhiko Hasegawa

Satoshi Watanabe

Yukihiro Nakayama

Misato Hanaoka

Tatsumi Yamada

Hisaya Nakamura

Hiroki Yoda

Takayuki Satodate

Tomohiro Shimada

Kouji Nitadori

Noritoshi Yuura

Yoko Shinohara

Minoru Hoshino

Mizuaki Suzuki

Tatsuru Sato

Satoshi Sakai

Shinji Nureki

Ayako Inoue

Hironobu Itoh

Koji Nitadori

Tetsuya Nobe

Minako Suzuki

Shinichi Hayashizaki

Jun Shinohara

Ko Yamazaki

Katsuari Sato

Atsushi Muto

Masami Oaku

Keisuke Abo

Akio Ozawa

Kazuo Katou

Makoto Suziki

Tomosumi Saruwatari

Daisuke Kobayashi

Yukio Akiyama

Takuo Oosaki

Masakazu Hirabayashi

Masatomo Moriko

Koji Ishii

Keitarou Koroishi

The rolling bearing includes an inner ring and an outer ring that are disposed coaxially with each other, a rolling body that is disposed between the inner ring and the outer ring, and a resin cover that is mounted on the outer ring. The outer ring has an outer circumferential surface that faces an opposite side of the inner ring, and an end surface that faces an axial direction. The resin cover has a circumferential wall portion that covers the outer circumferential surface, and a flange portion that is connected to the circumferential wall portion and covers the end surface. The flange portion has an opening portion formation region that has a constant width in a radial direction, extends over an entire circumference, and is formed with opening portions that expose the end surface.

Rolling bearing, rotating device, and method for manufacturing rolling bearing

Provided is a rolling bearing that can both ensure durability and reduce rotational resistance. The rolling bearing includes a seal member that is mounted on an outer ring and that covers a space between an inner ring and the outer ring from an outer side in an axial direction, and grease disposed between a rolling element and the seal member. The seal member includes an annular pedestal portion in contact with the outer ring from an outer side in the axial direction, an extending portion that extends outward in the axial direction from an inner peripheral edge of the pedestal portion, and a flat surface portion that extends along a radial direction from an end edge of the extending portion on an outer side in the axial direction toward the inner ring. The grease includes an outer ring contact portion in contact with an inner peripheral surface of the outer ring, and a seal member contact portion in contact with the flat surface portion on an outer side in the axial direction and an inner ring side with respect to the outer ring contact portion. An area of the seal member contact portion is larger than a contact area between the grease and the extending portion as well as the pedestal portion of the seal member.

To provide a rolling bearing and a rotating device which can reduce problems due to creep or the like, and a method for manufacturing a rolling bearing. A rolling bearing includes: an inner ring and an outer ring disposed coaxially with each other; and a rolling element disposed between the inner ring and the outer ring. A coating film is formed on at least one of an inner circumferential surface of the inner ring and an outer circumferential surface of the outer ring, and the coating film contains a mixture of calcium sulfonate and calcium carbonate or a compound obtained from calcium sulfonate and calcium carbonate.

A vibration generation device includes a stator, and a rotor rotatable around a predetermined axis with respect to the stator and having a weight having a gravity center at a position shifted from the predetermined axis. A control section controls a start-up period maximum voltage value, which is a maximum voltage value of a drive signal to be applied to the vibration generation device in a start-up period, to become larger than a steady operation period voltage value, which is a voltage value of the drive signal to be applied to the vibration generation device in a steady operation period. The control section selects at least one of a pluraity of voltage values as the steady operation period voltage value and sets the duration of the start-up period based on the steady operation period voltage value selected.

Control device for vibration generation device, electronic apparatus, and method of controlling vibration generation

The present invention is provided to prevent intrusion of dust, moisture, and the like, and simulatively deliver a kinetic operation feeling in response to an operation of an operator, and generate vibrations as necessary and separately from the operation of the operator. There is provided an inertial force imparting device including a stator, a mover that is arranged to be movable relative to the stator in a movable direction, a weight attached to the mover, an actuator unit that includes a shape memory alloy wire provided between the stator and the mover, instantaneously displaces the mover in the movable direction, and delivers an inertial force to the outside based on the displacement, and an elastic member that biases the mover toward the stator side along the movable direction, in which the shape memory alloy wire changes in length according to temperature, and changes the interval between the mover and the stator by expansion and contraction according to energization heating.

Inertial force imparting device and tactile sensation presenting device

A bearing grease includes a base oil and a thickener, and the base oil includes mineral oil and poly-&#x3b1;-olefin. The poly-&#x3b1;-olefin may be a blend of poly-&#x3b1;-olefin having a kinetic viscosity higher than that of the mineral oil and poly-&#x3b1;-olefin having a kinetic viscosity equal to or lower than that of the mineral oil, and the kinetic viscosity of the base oil at 40&#xb0; C. is in a range of 40 through 90 mm/s. The amount of the poly-&#x3b1;-olefin by mass in the base oil is greater than the amount of the mineral oil by mass in the base oil. The worked penetration of the grease is in a range of 200 through 250. The grease reduces flying grease and outgas and has superior low-temperature characteristics.

Grease, antifriction bearing, antifriction bearing device, and information recording/reproducing device

An electronic apparatus is configured to generate a variety of vibrations corresponding to a variety of different situations without excessively high power consumption. The electronic apparatus has first and second vibration motors having respective eccentric weights different in weight from each other for generating different first and second vibrations. An input/output section enables a user to select from a list of events stored in a storage section first events and second events. A controller drives the first vibration motor having a heavier weight with a strong vibration upon occurrence of the user-selected first events and drives the second vibration motor having a lighter weight with a weak vibration upon occurrence of the user-selected second events. The first events include an incoming phone call or email, a present alarm time, and a dynamic or important action, motion, and so on in a computer game. The second events include confirming input operations by the user, and a minute action, motion, and so on occurring in a computer game. The correspondence between the vibration motors and the events is selectable by the user.

Vibration generation device and electronic apparatus

An enveloping layer-coated slide bearing includes a slide bearing having a bearing surface formed in a cylindrical shape, and a first enveloping layer composed of a thermoplastic elastomer formed on and directly contacting an outer circumferential surface of the slide bearing. In another arrangement, a second enveloping layer is interposed between the first enveloping layer and the slide bearing and directly contacts the outer circumferential surface of the slide bearing.

Enveloping layer-coated slide bearing and drive module

A vibration generation device includes a rotor rotatable about a rotation axis, the rotor including a weight having a center of gravity that is eccentric with respect to the rotation axis. A shaft is inserted into the rotor and rotatably supports the rotor. A restriction part is disposed further inward than the weight in a radial direction, the restriction part being attached to one end of the shaft for restricting movement of the rotor in an axial direction.

Vibration generation device and electronic device

A method of manufacturing an enveloping layer-coated slide bearing includes preparing a slide bearing formed of polycarbonate, ABS resin, or an alloy material of the polycarbonate and the ABS resin; and forming an enveloping layer by injection molding a thermoplastic elastomer on an outer circumferential surface of the slide bearing. In an alternate method, an inner enveloping layer is formed directly on the outer circumferential outer surface of the slide bearing beneath the thermoplastic elastomeric enveloping layer.

Method of manufacturing an enveloping layer-coated slide bearing

There is provided a vibration generation device superior in responsivity compared to the related art. The vibration generation device includes a stator, a rotor provided to the stator so as to be able to rotate around the central axis, and having a weight having a gravity center at a position shifted from the central axis, and an air resistance reduction part provided to the weight, and reducing the air resistance to the weight when the rotor rotates. The weight is formed to have a semicircular shape viewed from the axial direction, and the air resistance reduction part has an arcuate part adapted to connect an end edge on the upstream side in the rotational direction of the rotor in the outer circumferential surface of the weight and an end edge on the downstream side in the rotational direction to each other so as to form a circular arc shape.

Provided is a bearing having a plurality of rolling elements disposed between an inner ring and an outer ring that are disposed coaxially, wherein a groove section extending in a circumferential direction of an outer circumferential surface of the outer ring outside in a radial direction is formed on the outer circumferential surface, and an enveloping layer formed of any one of rubber, a thermoplastic elastomer and a plastic is formed on the outer circumferential surface.

Rolling bearing

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

A grease for a rolling bearing of an information recording and reproducing apparatus contains a base oil, a thickener, and at least one kind of an antioxidant selected from an amine-based antioxidant expressed by the General Formula (1), and a phenol-based antioxidant expressed by the General Formula (2). The base oil contains a refined mineral oil classified as Group III in a base oil category defined by the American Petroleum Institute, and the flash point of the refined mineral oil is 240&#xb0; C. or higher.

Grease for rolling bearing, rolling bearing, rolling bearing device, and information recording and reproducing apparatus

Grease comprises a base oil and a thickener. The base oil contains mineral oil and poly-&#x3b1;-olefin, the proportion of the mineral oil is 10% by mass to 40% by mass in 100% by mass of the base oil, and a kinematic viscosity vof the mineral oil at 40&#xb0; C. is higher than a kinematic viscosity vof the poly-&#x3b1;-olefin at 40&#xb0; C. The base oil comprises a refined mineral oil that is classified as Group III in a base oil category defined by the American Petroleum Institute, and the flash point of the refined mineral oil is 240&#xb0; C. or higher. A rolling bearing contains the grease, a rolling bearing device includes a shaft supported by the rolling bearing device, and an information recording and reproducing apparatus includes the rolling bearing device.

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Chiba, Japan

Akihiro Iino