Citizen Watch Company, Ltd.

Bridgestone Corporation

Masami Kikuchi

Takashi Akiyama

Kanetaka Sekiguchi

Yuichi Akiba

Koji Nakagawa

Masafumi Ide

Takashi Toida

Koichi Hoshino

Takashi Yokoi

Takahisa Shizuku

Tomomi Murakami

Nobuyuki Hashimoto

Yoshikatsu Sakai

Wataru Seki

Yukio Aoike

Satoshi Aizawa

Kenichi Higashi

Katsuhiro Kobayashi

Masafuni Ide

Shuichi Harada

A bead wire has a composition of Mn: 5-35 at % and Al: 5-20 at % and the remainder being Fe and inevitable impurities, in which a steel structure is an austenite single-phase structure, and achieves weight reduction and high ductility without reducing strength.

Lightweight and excellent ductile bead wire, method for producing the same and lightweight tire

A seismic isolation apparatus features damping characteristics equivalent to or better than prior art, without burdening the environment. In this seismic isolation apparatus, a cylindrical cavity portion is formed at the middle of an outer side laminated body, which has a form in which respective pluralities of resiliently deformable rubber rings and metal rings for maintaining rigidity are alternately laminated. A helically formed coil spring is disposed in this cavity portion so as to be snugly fitted. An inner side laminated body, which has a form in which respective pluralities of resiliently deformable rubber plates and metal plates for maintaining rigidity are alternately laminated, is disposed at an inner peripheral side of the coil spring.

Seismic isolation apparatus

Methods and devices for measuring elongation, wear, and internal temperature of a conveyor belt to catch signs of conveyor belt failure such as breakage by detecting a magnetic field from a magnetic body by using a magnesium sensor, as well as a rubber magnet sheet as a magnetic body and a method of producing the sheet, the rubber magnet sheet being able to be used while it is embedded in the conveyor belt. To measure elongation of a running conveyor belt (), a magnetic field of a magnetic body () embedded in the belt () is detected by a magnetism sensor () fixed to the earth, and elongation of the belt () is calculated from temporal variation of the detected magnetic field.

Method and device for measuring conveyor belt elongation, method and device for measuring conveyor belt wear extent, method and device for measuring conveyor belt temperature, rubber magnet sheet, and method of producing rubber magnet sheet

A watch unit having a time-displaying section, including a reflection-type polarizing filmdisposed on an upper portion or a lower portion of the time-displaying section or a portion comprising a part of the time-displaying section, an optical modulation section which varies the ratio of a transmission axis to a reflection axis of the reflection-type polarizing film, and a shutter function to shield a portion of or all of the watch unit having the time-display section by varying the reflection intensity and the transmission intensity in relation to the light incident direction using the reflection-type polarinzing filmand the optical modulation section, to enhance the appearance and to improve the versatility of the watch unit.

Time piece with power generation function

A liquid crystal display panel in which a signal electrode provided on a first substrate (), a counter electrode provided on a second substrate (), and a liquid crystal layer () between the substrates, and which carries out display without polarizers by changing the degree of transmission and scattering by means of a voltage applied to a pixel part. A light source part () is provided along the periphery of both substrates (), and a polarization separating device () is provided between the liquid crystal panel and the light source part ().

Camera having a liquid crystal display device

A liquid crystal display device is structured in such a manner that plural of liquid crystal display panels each comprised of a liquid crystal layer provided between a pair of transparent substrates which have electrodes disposed on each facing inner surface, and a reflection-type polarizing film is disposed at least on the top surface of the plural liquid crystal display panel, or between the liquid crystal display panels, or on the lowest surface of the plural liquid crystal display panel. By controlling a reflection state and a transmission state through the reflection-type polarizing film with electric voltage applied on the liquid crystal layer of the liquid crystal display panel, a display which represents the opening and closing of a metallic shutter is made possible.

Liquid crystal display

A timepiece, in which a first liquid crystal display panel and a second liquid crystal display panel, each of which is constituted by sealing a liquid crystal layer in a gap between a pair of substrates formed with electrodes on opposed inner faces thereof respectively, are arranged in a case body having a cover glass with at least portions thereof overlapping, a first polarizing film is provided on an upper substrate of the first liquid crystal display panel on the cover glass side, a second polarizing film is provided between the first liquid crystal display panel and the second liquid crystal display panel, and a third polarizing film is provided on the lower side of a lower substrate of the second liquid crystal display panel respectively, the second polarizing film being a reflection type polarizing film, the first polarizing film, the first liquid crystal display panel, and the second polarizing film constitutes an upper display portion, and the second polarizing film, the second liquid crystal display panel, and the third polarizing film constitutes a lower display portion, so that at least the lower display portion performs display on the time.

Timepiece including multiple liquid crystal displays

A watch unit having a time-displaying section, including a reflection-type polarizing film disposed on an upper portion or a lower portion of the time-displaying section or a portion comprising a part of the time-displaying section, an optical modulation section which varies the ratio of a transmission axis to a reflection axis of the reflection-type polarizing film , and a shutter function to shield a portion of or all of the watch unit having the time-display section by varying the reflection intensity and the transmission intensity in relation to the light incident direction using the reflection-type polarinzing film and the optical modulation section, to enhance the appearance and to improve the versatility of the watch unit.

Timepiece

The liquid crystal display device comprises a liquid crystal cell with liquid crystals sealed thereinbetween, sandwiched between two transparent substrates having an electrode on each of the inner surfaces thereof facing each other, an absorption-type polarizing film disposed on the visible side of the liquid crystal cell, a reflection-type polarizing film disposed on the side of the liquid crystal cell, opposite from the visible side. The absorption-type polarizing film is a polarizing sheet absorbing a light linearly polarized in the direction orthogonal to the transmission axis thereof while the reflection-type polarizing film is a polarizing sheet reflecting a light linearly polarized in the direction orthogonal to the transmission axis thereof. A light reflection film or a color filter may preferably be disposed under the reflection-type polarizing film. Further, a light diffusing layer or a light diffusing film may preferably be disposed on the visible side of the absorption-type polarizing film.

A liquid crystal display device ( ) comprises a liquid crystal display panel ( ) and a reflector ( ) disposed on the side of the liquid crystal display panel, opposite from the visible side thereof. The liquid crystal display panel ( ) comprises liquid crystal ( ) sandwiched between two transparent substrates ( ), and display electrodes ( ) made up of a transparent and electrically conductive film provided on the inner faces of the respective substrates ( ). The reflector ( ) is provided with protrusions ( ) formed at positions corresponding to the display electrodes ( ) on a face thereof opposite to the liquid crystal display panel ( ). Accordingly, light transmitted through the liquid crystal display panel ( ) falls on the protrusions ( ) of the reflector ( ), and respective components of light reflected from the surface of the respective protrusion ( ) will reach the eyes of a viewer with differences in arrival time due to the surface condition of the respective protrusions ( ), so that information displayed by characters and so forth is three-dimensionally perceived by the viewer.

Liquid crystal display and timepiece

A timepiece according to the invention is provided with a liquid crystal display panel capable of displaying at least either of time information or calendar information, and the liquid crystal display panel comprises a liquid crystal cell with liquid crystals sealed thereinbetween, sandwiched between two transparent substrates having an electrode on each of inner surfaces thereof facing each other, polarizing sheets disposed on the external surface of the respective substrates, and a light absorption film disposed on the side of one of the polarizing sheets opposite from the liquid crystal cell. For each of the polarizing sheets, a sheet reflecting the light linearly polarized in the direction orthogonal to the transmission axis thereof is used so that either of a background or a display segment is displayed in a metallic color while the other is displayed in the color of the light absorption film. Thus, the invention provides a timepiece (watch or clock) capable of indicating display that is attractively variable in design.

Liquid crystal display panel for using in a timepiece comprising reflective polarizers and absorption film

A timepiece is provided with a liquid crystal display panel (,) capable of displaying at least either of time information and calendar information, and comprising a liquid crystal cell having a liquid crystal layer sealed in between a pair of transparent substrates, having an electrode on each of the inner surfaces thereof, facing each other, an absorption-type polarizing film disposed on the visible side of the liquid crystal cell, for absorbing the light linearly polarized in the direction orthogonal to the transmission axis thereof, a reflection-type polarizing film disposed on the side of the liquid crystal cell opposite from the visible side thereof for reflecting the light linearly polarized in the direction orthogonal to the transmission axis thereof, and a color filter disposed on the visible side of the absorption-type polarizing film, or between the absorption-type polarizing film and the reflection-type polarizing film.

Watch

The liquid crystal display device comprises a liquid crystal cell with liquid crystals sealed thereinbetween, sandwiched between two transparent substrates having an electrode on each of the inner surfaces thereof facing each other, a first reflective polarizing film disposed on the visible side of the liquid crystal cell, a second reflective polarizing film disposed on the side of the liquid crystal cell, opposite from the visible side, and a light absorption film disposed on the side of the second reflective polarizing film, opposite from the visible side. The first reflective polarizing film as well as the second reflective polarizing film is a polarizing sheet reflecting a light linearly polarized in the direction orthogonal to the transmission axis thereof. A light absorption film and/or a backlight may preferably be disposed under the second reflective polarizing film. Further, an absorption-type polarizing film or a light diffusion layer may preferably be disposed on the visible side of the first reflective polarizing film.

Growing community of inventors

Kodaira, Japan

Masami Kikuchi