Sony Corporation

Honda Motor Co., Ltd.

Hitachi Astemo Ltd.

Ihi Corporation

Atsushi Murakami

Naoki Fujiwara

Shinsuke Matsuno

Hideki Kato

Kenji Takano

Kiyotaka Yanaka

Yoshiyuki Iso

Keiichi Maekawa

Shiko Nakamura

Shinya Okuno

Jian Huang

Mariko Katou

Hirokatsu Kameda

Shinji Kasatori

Kenji Nagaoka

Toshihiro Ogawa

Kentaro Tokita

A coil spring jig includes a spring support portion where one end of a coil spring is capable of being placed, a plurality of displacement regulating portions extending along an axis of the coil spring from the spring support portion with the coil spring supported by the spring support portion as a reference, capable of abutting against an outer peripheral surface of the coil spring, and regulating displacement of the coil spring in a radial direction of the coil spring, and a lid portion supported by the displacement regulating portions and capable of keeping the coil spring in a compressed state by sandwiching the coil spring together with the spring support portion.

Coil spring jig, coil spring manufacturing method, and coil spring testing method

The invention relates to a method for manufacturing a coil spring and for determining a propelling condition for a shot medium. In a case where it is confirmed that the coating film remains in a third step, at least one or more of conditions of the shot peening treatment including a propelling speed of the shot medium, a propelling time of the shot medium, a material of the shot medium, and an average particle diameter of the shot medium are changed and the second step and the third step are repeated until the coating film does not remain. In a case where it is confirmed that the coating film does not remain in the third step, the condition of the shot peening treatment in the second step in which the coil spring is obtained with no remaining coating film is determined as the propelling condition for the shot medium.

Method for determining propelling condition for shot medium, and method for manufacturing coil spring

A rotary head type tape recording and/or reproducing apparatus comprises a rotary head drum having a rotary head for recording and/or reproducing information signals onto or from a magnetic tape helically wrapped around the rotary head drum with a predetermined wrap angle and an outer peripheral surface of the drum being free of leads for restricting the movement of the wrapped magnetic tape in the width direction; a pair of tape guides having flange portions which are located near both sides of the rotary head drum and restrict the movement of the magnetic tape in the width direction; and a head drum supporting and moving arrangement for fixing the rotary head drum and the pair of tape guides and moving so as to be in contact with or away from a cassette loading arrangement which loads and supports a tape cassette in which the magnetic tape is enclosed.

Rotary head type tape recording and/or reproducing apparatus

The body of a cassette tape recording and/or reproducing apparatus in which a cassette is mounted and a tape therein is driven for recording and/or reproducing, comprises a primary portion and a secondary portion slidably combined with the former, and an openable and closable cover which covers the cassette mounted in the body is also slidable with the secondary portion of the body. When the apparatus is out of use, the widths of the body and cover are decreased to smaller widths than those necessitated for mounting the cassette, and that the cover is prevented from opening, and only when the apparatus is in use, the widths of the body and cover are increased to minimal widths necessitated for mounting the cassette and that the cover is openable and closable.

Cassette tape recording and/or reproducing apparatus

Growing community of inventors

Tokyo, Japan

Atsushi Murakami