Hitachi, Ltd.

Hitachi Aloka Medical, Ltd.

Other

Hidemitsu Kobayashi

Takashi Yasuhara

Tosio Tomite

Tatsuhiro Tani

Hiroaki Wakabayashi

Kazutoshi Tsuchida

Shigeyuki Hirukawa

Noriaki Tan

Yasuyuki Saito

Osamu Koizumi

Toshiaki Ueda

Toru Watanabe

Shotaro Naito

Ryozo Takeuchi

Koji Obata

Takayuki Koizumi

Yasuhiko Kimura

Hiromichi Anan

Nobuhiko Ogasawara

Hidetsugu Katsura

Rokuro Kikuchi

Takeo Yasuhara

Hiroyuki Nagasawa

Syuichi Hara

Suetarou Shibukawa

Takefumi Oowada

Hisashi Kondo

A body-cavity-insertion-type probe wherein an internal unit (internal assembly) has an oscillator unit, a relay board, and electronic circuit board, and a backing member. The backing member is retained in a state of being housed inside a backing case, and the backing case is retained by two recesses formed in an inside surface of a heat dissipation shell as a probe head case. An exhaust heat sheet is joined to a peripheral region of a back surface of the electronic circuit board. A rear wing and a front wing of the exhaust heat sheet are joined to the backing case.

Ultrasonic probe

An ultrasonic probe for supporting spine surgery serving as a tissue insertion type ultrasonic probe comprises an insertion unit and an operation unit. On a front end portion of the insertion unit, a tactile member and a transducer unit are provided. The insertion unit comprises a pipe, and a sheath tube provided outside of the pipe. An FPC board serving as a line sheet is provided in the pipe. The FPC board is inserted in a rounded shape similar to a tube along an inner wall surface of the pipe. A large number of signal lines are formed on the FPC board through printing. A ground cable is provided in an inside space of the FPC board. In the operation unit, a rear end portion of the FPC board and a front end portion of another FPC board are connected by thermo compression bonding.

Tissue insertion type ultrasonic probe

There is provided an ultrasonic probe for supporting spine surgery which can execute both inspection by tactile sense and inspection by ultrasound diagnosis. A front-end component provided at a front end of an insertion unit. The front-end component comprises a metal component and a resin component, and the metal component comprises a tactile member and an anchor. The resin component comprises a cap portion and a surrounding portion. An insertion portion in the front-end component is inserted into a front end portion of a pipe. The anchor and the front end portion are in close proximity with a certain distance therebetween, such that insulation is secured and vibration transmitted from a head can be transmitted from the anchor to the pipe in a superior manner.

A stator coil, being a rectangular coil, is wound on a salient pole, striding across a plurality of slots, while being inserted sequentially through the inlet of a predetermined slot of the stator core. The stator coil comprises two slot inserts and to be inserted into the slot; two coil ends and located outside the end of the slot; and four twist sections arranged between the slot inserts and coil ends, processed by twisting. In the twist sections, twisting is applied to ensure that the surface of the rectangular coil in the second coil end will be opposite to the surface of the rectangular coil in the first coil end. The start of winding of the rectangular coil and the end of winding of the same coil are located on the same surface. Thereby, a rotating electrical machine with the large internal dimensions without increasing the external dimensions is achieved.

Rotating electrical machine and coil

A stator coil is configured of a first group of six turns of conductive wire, and a second group also of six turns, with the first group of six turns being wound on a spool, leaving a gap the same as the diameter of the conductive wire between winds. Upon completion of winding the first group, the winding is turned back, and the second group of six turns is wound in the gap, so as to be adjacent to the turns of the first group. The article is then inserted into a slot in a stator core of a stator, thereby configuring a stator coil. This provides for a rotating electrical machine and manufacturing method thereof with improved insulation resistivity regarding inverter surge voltage, and moreover high output can be obtained with a machine of comparable external dimensions with conventional machines.

Rotating electrical machine and manufacturing method thereof

A linear shape straight angle line is transformed to form U-shape configuration in advance and by sandwiching a stator tooth portion to adjacent slots linear shape two sides are inserted and using a thin plate rod shape chip between both ends of U-shape side of the above stated coil is connected and then the coil is formed to have one winding close circuit. The plural coils are inserted and as stated in above between the both ends of an anti-U-shape side is connected, and a stator coil for forming a predetermined winding turn number is obtained. When an end face of the anti-U-shape side and the thin plate shape chip are overlapped and connected, a plate thickness of a portion in which they are overlapped is reduced by half respectively, and when they are overlapped, it becomes the plate thickness which corresponds to a plate thickness of the above stated straight angle line coil. A length of a coil end portion can be shortened widely.

Stator of rotating electric machine

A plurality of permanent magnets (4) are disposed with gaps between adjacent magnets along the inner peripheral surface of a yoke (2) of a stator for a magneto D.C. motor. In gaps between magnets, there are provided retainers (3), ech of which is made of an elastic member and consists of one surface (11) fixed on the yoke, two surfaces (12, 13) extending in the central axial direction of the D.C. motor along the side facing surfaces (71, 72) of the magnets opposite to each other on the inner peripheral surface of the yoke and two end portions (32) connecting these two surfaces (12, 13). Those two surfaces (12, 13) and end portions (32) are kept in contact with the permanent magnet from three directions, namely from both facing surfaces (71, 72) of the permanent magnet and from each of the outer surfaces (81, 82) of the magnets adjacent to each facing surface (71, 72) extending in the central axial direction, whereby the permanent magnets are pressed and clamped so as to be secured to the yoke.

Magneto D.C. motor having elastic magnet mounting retainers

In a permanent type DC motor, a stator comprises a yoke and a plurality of magnetic pole pairs composed of permanent magnets and auxiliary poles. The plurality of magnetic pole pairs are held and fixed in intimate contact with the yoke by pressingly deforming a cylindrical thin plate made of magnetic material such as a steel plate. The fixture of the magnetic pole pairs composed of the permanent magnets and auxiliary poles is attained by a projecting part formed by pressingly deforming a part of the thin cylindrical plate made of the magnetic material toward a space between the adjacent pole pairs and by using U-shaped magnetic retaining pieces.

Magnetic cover member for magnetic poles of DC motor

A method of production of a cylindrical body from a sheet of steel formed at opposite sides with projections and cutouts complementary to each other. The method comprises the steps of rolling the sheet of steel and inserting the projections in the cutouts to provide a cylindrical blank, and compressing at least one of inner and outer peripheral surfaces of the cylindrical blank in a radial direction to reduce the thickness of the cylindrical blank and to stretch a portion of the cylindrical blank in an axial direction whereby the projections inserted in the cutouts can be brought into intimate contact with each other at jointed portions.

Method of production of cylindrical body

Growing community of inventors

Mitaka, Japan

Hidemitsu Kobayashi