J.s.t.mfg. Co.,ltd.

Kabushiki Kaisha Tokai Rika Denki Seisakusho

Mitsubishi Rayon Company, Limited

Aichi Prefecture

Kentaro Hayashi

Makoto Shiraishi

Seiya Koyanagi

Shinji Saiki

Yuichiro Kishimoto

Yutaka Katsuyama

Katsumi Yonekura

Hideki Kokubu

Yoshihito Nakahara

Shiro Esaki

Yasuo Takasu

Umeo Arao

Satoshi Fukuta

A connector includes a housing and contacts. Each of the contacts includes a leading end, a connecting part, a held part, and a flange part. The housing has a holding part having a contact insertion hole into which the held part is inserted. The contact insertion hole includes: a first insertion hole in which a side surface of the held part of the contact is held; a second insertion hole formed in a size that holds one opposite side surface of the held part of the contact, and having a space on the other opposite side surface side, the second insertion hole being formed to be longer than the first insertion hole; and a flange holding part. The held part of the contact is made longer than the leading end of the contact. This configuration can improve alignment accuracy of the contacts without using a compensation plate.

Connector

A wooden member fabrication method which, by a simple process, can enable greater stability of shape subsequent to processing and uniformity of color tone. A wooden original piece with a long form has a hole thereinside which extends in the length direction. Corner portions are chamfered and radial direction thicknesses are substantially constrained to a certain range. An outer periphery of this wooden original piece is compression-deformed in directions toward an axial central portion and the outer periphery is thus made an arc surface. Because of the chamfering, radial direction thicknesses of the wooden original piece are constrained, and differences by location between compression ratios can be suppressed.

Wooden member fabrication method

Optical add-drop multiplexer

An optical module comprises an first filter, an optical fiber for guiding light wave to a first end face of the filter, a second optical fiber for guiding a light wave transmitted through the filter from a second end face of the filter, a third optical fiber for guiding light wave to said second end face of the filter, a fourth optical fiber for guiding the light wave reflected by the filter and the light wave transmitted through the filter from said first end face of the filter, a plug connector for positioning said first and fourth optical fibers, and a socket connector for positioning said second and third optical fibers.

Optical module

Wobble caused between an operation knob and a casing for housing the operation knob is suppressed as small as possible due to the heat contraction at the time of a molding process. As a result, the operation knob can be downsized and so an assembly of the operation knob and the casing can be miniaturized as compared with the conventional ones. The operation knob and the casing for guiding the movement of the operation knob are formed by composite resins by using a dichroic molding method, and then the operation knob and the casing are separated after being molded to obtain an assembly. Due to the heat contraction at the time of the molding process, a necessary guide clearance is formed between the operation knob and the casing after the assembling of the operation knob and the casing. The operation knob is allowed to move due to the guide clearance.

Assembly of operation knob and casing for switch and fabrication method thereof

A (meth)acrylic premix comprising a (meth)acrylic resin composition (A) containing a (meth)acrylic monomer (a) and a (meth)acrylic polymer (b), an inorganic filler (B), and a curing agent (C), wherein, the component (a) is a (meth)acrylate having a bicyclo ring, fluorine atom, cyclic ether, cyclohexane ring or tricyclo ring, and the component (C) is a radical polymerization initiator having a 10 hours half-life temperature of 75&deg; C. or more; an acrylic SMC or BMC comprising this (meth)acrylic premix and a thickening agent; and a method for producing (meth)acrylic artificial marble, wherein this (meth)acrylic SMC or BMC is cured with being pressurized and heated at a temperature in the range from 105 to 150&deg; C., are provided. These are useful for producing (meth)acrylic artificial marble having various excellent physical properties such as appearance, dimension stability, hot water resistance, weatherability.

(Meth)acrylic premix, (meth)acrylic SMC or BMC, and process producing (meth)acrylic artificial marble

An acrylic SMC or BMC, in which when a polymer powder (C) having a bulk density in the range from 0.1 to 0.7 g/ml, an oil absorption of lin-seed oil in the range from 60 to 200 mi/100 g, a degree of swelling by methyl methacrylate is 16-fold or more and a specific surface area in the range from 1 to 100 m,/g is added as a thickening agent, hot water resistance is improved by using a polymer powder (C,) containing no surfactant, a polymer powder (C,) containing as a constituent component a reactive surfactant, or thickening speed is controlled by using a non-cross linked polymer powder (C,) having a Mw from 100,000 to 2,500,000, a non-crosslinked polymer powder (C,) having a Ma from 2,500,000 to 5,000,000, a crosslinked polymer powder (C,) and a polymer powder (D) having a specific surface area from 0.01 m,/g to 1 m,/g; a production method thereof; a method for producing acrylic artificial marble in which components are extruded by a kneading extruder (9) into given shape; and a thickening agent.

Acrylic SMC or BMC, production thereof, method for producing acrylic artificial marble, and thickening agent

Growing community of inventors

Aichi, Japan

Kentaro Hayashi