Hitachi, Ltd.

Takeo Honma

Akira Sasaki

Akiyoshi Hakoyama

Masafumi Suzaki

Katsumasa Mikami

Yoshihito Takahashi

Akira Nakajima

Yasuo Nishiguchi

Hiroshi Kinoshita

Yukio Nakata

Tamotu Shikamori

Isao Hiyama

Kenji Nakamura

Tomoji Kitagishi

Tetsuji Takegoshi

Yousuke Nagano

Tsuyoshi Yasutomi

Hiroshi Ohsugi

Hideyuki Tobita

Shigetaka Furukawa

Ryoichi Shiraishi

Yoshiaki Takeda

Kenichi Hironaka

Yuuji Aoyagi

Tomohiko Yanagita

Ryooichi Kobayashi

Tomio Sato

Sizuo Thuruta

Toshikazu Ohonishi

Kenichi Kubo

Masayoshi Hirayama

Katsumi Imaizumi

Yoshio Ohwa

Syoji Yokoyama

Junichi Matsumoto

Nobuyuki Tottori

Kazufumi Ikeda

Toshiyuki Hori

In a full-automated washer, a cloth amount sensor detects a quantity of an object being washed which is thrown into a washing drum as a value inclusive of information regarding a degree of bulkiness of the object to be washed. A processing circuit included in the full-automated washer is responsive to a detection output signal from the cloth amount sensor to determine a water supply amount, a cleanser feed amount, a stirring time and a rinsing time. The cloth amount sensor is mounted to a stirring motor. Upon an OFF-state of the motor, the detection output signal is generated by measuring a voltage waveform induced by inertial motion which varies in accordance the degree of bulkiness of the object to be washed.

Full-automated washer

The face pressure distribution shape of the graze portion of the thermal head is made to be consistent with the temperature distribution shape of the graze portion of the thermal head. The temperature distribution shape of the graze portion of the thermal head is made to be consistent with the face pressure distribution shape of the graze portion of the thermal head. The graze portion of the thermal head is formed projectingly in two steps, and the heating resistor element of the thermal head is provided on the top portion of the graze portion of the thermal head. A thermal transfer printer having no ink void and no ink transfer unevenness can be obtained.

Thermal transfer printer having an improved thermal head to improve ink

A thermal transfer printer has a platen and a thermal head between which are pinched a transfer paper sheet and an ink film, so that the ink is transferred from the ink film to the transfer paper sheet as heat is applied to the transfer paper sheet by the thermal head. The film is supplied by a supply roll and is taken-up by a take-up roll. The thermal head is swingable between a position where it contracts the platen and a position away from the platen. When the thermal head is in the position away from the platen, the distance therebetween is greater than the maximum diameter of the supply roll. A film drum can hold a plurality of films each being constituted by the supply roll and the take-up roll. Swing arms are provided for demounting the supply roll of a selected film from the film drum and for bringing the same to a position away from the film drum, and also for returning the same from this position to the film drum. During the movement of the supply roll between the position in the film drum and the position away from this position, the thermal head is moved away from the platen so as not to hinder the movement of the supply roll.

Thermal transfer printer

A thermal trasfer printer including a thermal head, and a platen positioned against the thermal head through a printing sheet. The thermal head has a substrate formed of heat insulating material, at least one glaze layer on a top surface of the substrate extending longitudinally thereof, a plurality of heat generating elements on the glaze layer, a plurality of electrodes each connected to the heat generating elements in a manner to form an opening for the heat generating elements and a protective layer for preventing the electrodes and heat generating elements from contacting the printing sheet to avoid their wear. A portion of the protective layer for protectng the heat generating elements has a height which is greater by more than 5 .mu.m than the height of a portion of the protective layer for protecting the electrodes. The width of the glaze layer transversely of the substrate is less than 200 .mu.m at a location which is 10 .mu.m below a top surface of the portion of the protective layer for protecting the heat generating elements in a vertical direction. The platen is a flat platen and its deflection caused to occur by a biasing force exerted on the thermal is more than 0.02 time and less than twice as great as the height of the glaze layer.

Thermal print head

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Hitachi, Japan

Takeo Honma