Fuji Photo Film Company, Limited

Sony Corporation

Makoto Yoshimura

Naoki Watanabe

Takayuki Mizuuchi

Taeko Usui

Shinichi Funabashi

Shinji Saito

Hiroshi Ogawa

Katsuhiko Meguro

Mikihiko Kato

Minoru Kanazawa

Tetsuji Nishida

Keiji Tanaka

Yoshiharu Saiga

Susumu Hara

The present technology relates to a headphone and a reproduction control method that enable external sound to be caught more easily and promptly, and a program. The headphone includes: a sound collecting unit configured to collect outer sound; a detection unit configured to detect a specific motion to a sensor unit for capture of the outer sound; and a reproduction control unit configured to cause, in a case where the specific motion is detected, the outer sound collected by the sound collecting unit to be reproduced and volume of audio under reproduction to be reduced or the reproduction of the audio to stop. The present technology can be applied to, for example, a headphone.

Headphone, reproduction control method, and program

A magnetic recording medium is disclosed, comprising a nonmagnetic support having thereon a magnetic layer, said magnetic layer comprising ferromagnetic particles and a binder, wherein nonmagnetic support has a transverse-direction Young's modulus of at least 1,000 Kg/mm.sup.2, said magnetic layer has a glass transition temperature of 80.degree. to 100.degree. C., and said magnetic recording medium has a total thickness of less than 12 .mu.m, and further a magnetic recording medium is disclosed, comprising a nonmagnetic support having thereon a magnetic layer, said magnetic layer comprising ferromagnetic particles and a binder, wherein said magnetic recording medium is adapted for use with a magnetic head having a core width of at least 100 .mu.m at a speed of at least 20 m/sec based upon relative speed of said recording medium and said head, said nonmagnetic support has a transverse-direction Young's modulus of at least 1,000 Kg/mm.sup.2, said magnetic layer has a glass transition temperature of from 80.degree. to 100.degree. C., and said magnetic recording medium has a total thickness of less than 12 .mu.m.

Magnetic recording medium having a magnetic layer with a Tg of 80.degree. C

A process for producing a magnetic recording medium is described in which a hardening agent and a lubricant are added to a magnetic coating solution prior to coating thereof on a non-magnetic support. It has been found that improved magnetic recording properties and consistent product characteristics are obtained if the addition of the hardening agent and lubricant to the magnetic coating solution is carried out within about 240 minutes of surface calendering treatment of the magnetic recording medium.

Process for producing a magnetic recording material

A magnetic recording medium wind-up method for winding up a long strip-like magnetic recording medium into a coil around a core comprises the steps of pressing the wound-up portion of the magnetic recording medium toward the core with a predetermined pressure while the magnetic recording medium is being wound up around the core. A predetermined length of the magnetic recording medium is wetted, which length will be wound up around the core immediately before the core is fully loaded with the magnetic recording medium, immediately before the predetermined length of the magnetic recording medium is wound up.

Magnetic recording medium wind-up method

A method for manufacturing a magnetic recording medium comprising the steps of: (1) providing a lower layer comprising a ferromagnetic powder dispersed in a binder on a non-magnetic support and (2) providing an upper layer comprising a ferromagnetic powder dispersed in a binder on the lower layer, wherein a solvent used in a magnetic coating composition for the lower layer contains at least 30 wt % of an organic solvent having an evaporation rate index of less than 50; a solvent used in a magnetic coating composition for the upper layer contains from 0 to 40 wt % of an organic solvent having an evaporation rate index of less than 50; the content of an organic solvent having an evaporation rate index of less than 50 in the coating composition for the upper layer is smaller than that in the coating composition for the lower layer; the magnetic coating composition for the upper layer is coated while the lower layer is not dried; and when the lower and upper layers are dried until the total solvent content of the lower and upper layers is in the range of from 0.05 to 3 wt %, a calendering treatment is carried out.

Method for manufacturing magnetic recording medium

Growing community of inventors

Kanagawa, Japan

Makoto Yoshimura