Mitsubishi Denki Kabushiki Kaisha

Denki Kagaku Kogyo Kabushiki Kaisha

Kousuke Haraga

Akira Yamada

Naoki Kato

Yoshihiko Utsui

Satoshi Yanaura

Toshiro Tsukahara

Kazuo Uesaka

Hiroshi Satou

Ituo Nishiyama

Takashi Taniguchi

Kiyotugu Tuneyoshi

Kazuyoshi Teramoto

Keitarou Tsukui

Katsutoshi Hattori

Katutoshi Hattori

Kazumi Yamamoto

A head drive for a rotary drum device comprising a plurality of yokes made of magnetic material and magnets housed in the yokes for forming a plurality of magnetic fluxes. A bobbin, comprising a first material surrounds the magnets and has a coil formed on the bobbin. The coil is covered with a second material. At least one circular, non-magnetic leaf spring having an inner periphery and an outer periphery and supported at the outer periphery or the inner periphery by at least one of the yokes and the magnetic means supports the coil. Fixing members, comprising a third material are positioned at the inner periphery of the leaf spring. This third material is positively dissolved and welded to at least one of the first material and the second material with a bonding solvent whereby the leaf spring supports the coil. A prolongation at a portion of the outer periphery of the leaf spring can support a magnetic head.

Rotary drum device having a head drive with positively bonded bobbin

Method for manufacture stress detector

An implosion protected cathode ray tube which comprises a glass envelope having a faceplate; and a layered protective structure deposited over and positioned frontwardly of the faceplate. The layered protective structure includes a first resin-coated layer held in contact with the faceplate, a hard coated layer for protecting the first resin-coated layer and a second resin-coated layer formed between the first resin-coated layer and the hard coated layer. The first resin-coated layer has a hardness which corresponds to 1H or lower of hardness of drafting pencil lead, and an elongation at breakage within the range of 65 to 85%. The first resin-coated layer also has a break strength of 3.5 kilograms per square millimeter or greater. The hard coated layer has a hardness which corresponds to 5H or higher of hardness of drafting pencil lead, and an elongation of 3% or smaller at breakage. The second resin-coated layer has a hardness generally intermediate between the hardness of the first resin-coated layer and that of the hard coated layer and also an elongation at breakage generally intermediate between the elongation of the first resin-coated layer at breakage and that of the hard coated layer at breakage.

Cathode-ray tube with multi-layer resin coating on faceplate providing

A panel used as a material for forming a wall of a general building material such as an elevator is constituted from a rigid front plate and a rigid back plate having a corrugated cross-section adhered to the rear side of the front plate by means of a reinforcing bonding agent made of a synthetic resin material. The synthetic resin bonding agent contains at least one hollow body in order to minimize the specific gravity of the bonding agent to reduce the weight of the panel.

Lightweight impact absorbing panel

A panel for an elevator composed of a surface plate and a corrugated reinforcing member having ridges facing the surface plate with the surface plate and the corrugated reinforcing member being joined to each other by a room temperature curing modified acrylate adhesive of a two-part non-solvent type applied in flat layers in an unmixed condition to the entire crest of the ridges and surface portions of the surface plate facing the ridges. The elevator panel thus formed retains the adhesive in a satisfactorily cured condition with a high level of adhesive strength while providing a greatly improved level of soundproofing and damping as well as ease of fabrication.

Elevator panel

Growing community of inventors

Amagasaki, Japan

Kousuke Haraga