Hitachi, Ltd.

Norihiko Ozaki

Yoshiaki Ichikawa

Fumio Tomizawa

Nobuyoshi Iwatsuka

Masanori Suzuki

Kenji Tsuchita

Seishi Watahiki

Chikara Sato

Yasuzi Sakuma

Katsuhiro Mizuno

Shinji Sonoda

Masayoshi Yamaguchi

Kenichiro Sadakane

Disclosed is a television camera having good color reproducibility which is secured to be maintained for a long time even in an atmosphere of high radiation, and in which the degree of deterioration in each color component signal due to radiation exposure is detected and the amplification degree of each color component signal is corrected in accordance with the detected degree of deterioration so as to make the color reproducibility come back to the state before radiation exposure.

Radiation resistant color television camera

A manipulator suitable for tasks in remote places which are not easily accessible to operators comprises an arm composed of a series of arm modules each having an articulate and an address decoder and being constructed by the arm modules of an identical construction to attain an easy maintenance and high flexibility of the manipulator. The operation of the arm modules is controlled a control system which has a plurality of articulate angular-position commanding circuits and a time-sharing control circuit.

Manipulator

A moving apparatus for moving a moving member within a hollow curved pipe arrangement and method of performing operations within the pipe arrangement by using the apparatus, with the apparatus including a long moving member made of a material having an elasticity and a moderate degree of flexibility, a supporting device for continuously winding the moving member therearound and for supporting the same, and a prime mover connected to the supporting device, through a rotating shaft, so as to supply an electric power to the supporting device at the time of winding the moving member, whereby an elastic strain energy is stored in the moving member by rotating the supporting device by the prime mover and winding the moving member around the same, and, while the elastic strain energy thus stored is continuously released, the moving member is allowed continuously to move within the pipe arrangement. The operations performed include drawing a wire into the pipe arrangement, and inspecting the interior of the pipe arrangement by providing an inspection device on a tip end of the moving member of the moving apparatus and performing continuous inspecting operations within the pipe arrangement while the moving member is moved within the pipe arrangement.

Moving apparatus for a hollow curved pipe-arrangement and an operating

A multiarticulated manipulator including a multijoint connecting mechanism having a plurality of arms, each arm having a joint capable of being bent in one plane and all the arms being connected with one another in positions spaced apart from one another by circumferential extent of 90 degrees. A plurality of wires are provided, each wire being connected to one of the arms and all the wires being supported and guided by wire guides and driven by a drive. The multiarticulated manipulator incorporated in a movable type remoted-controlled visual monitor system further includes a lens fixed to a forward end of the multijoint connecting mechanism, a fiberscope connected to the lens, and a movable member having the drive mounted therein and supporting the multijoint connecting mechanism, and a camera mounted in the movable member and connected to the lens through the fiberscope.

Multiarticulated manipulator

Growing community of inventors

Mito, Japan

Norihiko Ozaki