Patents Assigned to Takenaka Corporation
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Patent number: 5083891Abstract: A multistory parking space wherein at least one parking floor is located underground. An entry way and an exit way for vehicles of the multistory parking space are provided with an entrance lift and an exit lift, respectively. The parking floor is provided with at least one power carrier and a large number of parking pallets, and vehicles are transferred between the lifts and the carrier and between the carrier and the pallets by conveyors. Shutters are provided between the lifts and the entry and exit ways, and the lifts and the passenger ways to prevent accidental falling of a vehicle or a passenger.Type: GrantFiled: July 10, 1990Date of Patent: January 28, 1992Assignee: Takenaka CorporationInventor: Tsubota Takahiro
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Patent number: 5044172Abstract: An air conditioning apparatus having a cold accumulating cycle including a first compressor, a first condensor, a first decompressing mechanism and a heat accumulator and a refrigerating cycle including a second compressor, a second condensor, a second decompressing mechanism and an evaporator, wherein the heat accumulating cycle and the refrigerating cycle are provided independently of each other and in that a cooling device using the evaporator as cooling means serves for cooling by utilizing heat accumulated in the heat accumulator thereby constituting a cold transfer circuit.Type: GrantFiled: August 24, 1989Date of Patent: September 3, 1991Assignee: Takenaka CorporationInventors: Yoshinori Inoue, Masao Endo, Shinji Miura
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Patent number: 5042784Abstract: A damping support structure for preventing vibrations of an apparatus table supporting an apparatus for manufacturing ultra-high precision devices such as semiconductors and printed circuit boards. The apparatus table is supported in suspension by support members, with its apparatus mounting surface disposed at a low level. The support members are supported by stationary members through vertically extendible and contractible first air springs. Horizontally extendible and contractible second air springs are disposed between the stationary members and the apparatus table. The first and second air springs serve to mitigate vertical and horizontal vibrations of the apparatus table, respectively.Type: GrantFiled: July 7, 1989Date of Patent: August 27, 1991Assignees: Takenaka Corporation, Tokyo Kiki Kabushiki KaishaInventors: Nobuyoshi Murai, Yoshinori Takahashi, Kazuyoshi Katayama, Masashi Yasuda, Atsuhiko Mori
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Patent number: 5027000Abstract: A wave power generating system for generating electricity using natural wave power, includes wave energy converters for converting wave energy into air pressure, a constant air pressure tank for storing the air pressure from the wave energy converters to equalize the fluctuation of the air pressure, an air turbine stationarily driven by the equalized air pressure, and an electric generator for generating stable electricity using the rotating power of the air turbine. The wave energy converters are settled to the bottom of the sea and are sufficiently tall to function as wave dissipation facilities. The air pressure in the constant air pressure tank is automatically controlled toward a target value by a controller and the target value is calculated by the controller in accordance with measured values of wave amplitude and period and the current air pressure of the constant air pressure tank.Type: GrantFiled: September 7, 1989Date of Patent: June 25, 1991Assignee: Takenaka CorporationInventors: Hidenori Chino, Takashi Hara, Kenji Tamura, Yasuhide Nakakuki, Yasuyuki Nii, Zenya Soma, Kiyoshi Nishihara
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Patent number: 5012521Abstract: When a pattern is manually drawn on a tablet with an electronic pen, a computer executes a graphic processing to display on a CRT a geometrically defined pattern which best resembles the manually drawn pattern. Moreover, a pattern element is erased, divided or copied by memorizing a graphic processing command in advance in a manner to correspond to a predetermined pattern or operator and by manually drawing this operator on the tablet with the electronic pen.The pattern data can be inputted to the computer to display the pattern by the same operations as those for drawing on a paper with writing apparatus so that the pattern can be drawn on the basis of the human engineering without feeling any physical disorder.Type: GrantFiled: December 29, 1988Date of Patent: April 30, 1991Assignee: Takenaka CorporationInventors: Yasuo Endo, Shinji Akimichi, Tadayoshi Hirose, Motonori Furukawa, Kyoko Yoshida
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Patent number: 4981626Abstract: After a mortar layer is formed on the surface layer of placed concrete, an ultrasonic vibrator is caused to vibrate while being pressed against the mortar layer surface, and a thin surface layer is scraped off, obtaining a dense water-shielding layer. Mortar with a low water-cement ratio is spread onto the surface of the water-shielding layer, and adhesion between the mortar and the water-shielding layer is strengthened by using the ultrasonic vibrator. The pressing force of the ultrasonic vibrator is then increased to make the mortar and the water-shielding layer densely integrated together, thereby forming a hard concrete surface excelling in abrasion resistance.Type: GrantFiled: April 5, 1990Date of Patent: January 1, 1991Assignee: Takenaka CorporationInventor: Iwao Uchizaki
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Patent number: 4976415Abstract: A damping support structure for preventing vibrations of an apparatus table supporting an apparatus for manufacturing ultra-high precision devices such as semiconductors and printed circuit boards. The apparatus table is supported by a support deck suspended to be horizontally displaceable. Linear motors are actuated in response to vibrations of the apparatus table detected by vibration sensors. The apparatus table is thus displaceable relative to a stationary section, to be safeguarded against the vibrations.Type: GrantFiled: June 1, 1989Date of Patent: December 11, 1990Assignee: Takenaka Corporation, A Japanese CorporationInventors: Nobuyoshi Murai, Yoshinori Takahashi, Kazuyoshi Katayama
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Patent number: 4975121Abstract: The present invention provides a method for improving the durability of cement-hydraulic substances, the method decreasing the dry shrinkage of cement-hydraulic-set substances such as concrete, mortar or related substances, and increasing resistance to a repetition of the freezing and thawing of the cement-hydraulic-set substances, by the use of terminal alkyletherified compounds or terminal alkylesterified compounds of polymers having --C.sub.2 H.sub.5 O-- and/or --C.sub.3 H.sub.6 O-- as a repetitive unit.Type: GrantFiled: July 13, 1989Date of Patent: December 4, 1990Assignees: Fujisawa Pharmaceutical Co., Ltd., Takenaka Corporation, Nippon Nyukazai Co., Ltd.Inventors: Masaharu Sakuta, Toshio Saito, Kunio Yanagibashi
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Patent number: 4921202Abstract: A vibration-damping floor is supported by one ends of flexible coupling members, such as chains or ropes whose the other ends are connected through guide sprockets and movable spring frames to tension springs set horizontally under the floor. A vertical vibration for the floor is absorbed by the springs.Type: GrantFiled: December 13, 1988Date of Patent: May 1, 1990Assignee: Takenaka CorporationInventors: Hiraku Miyake, Mitsuo Ishiguro, Yutaka Hayamizu, Satoru Aizawa
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Patent number: 4912903Abstract: A space frame comprises an upper frame body and a lower frame body both constructed with square steel tubular members; and diagonal members joining the upper frame body to the lower frame body. Each pair of two perpendicular sides of each of the square steel tubular members forming the lower frame body are arranged to make an angle of about 45 degrees to the plane of the lower frame body. The diagonal members are arranged to cross at an angle of about 45 degrees to bar members both of the upper and lower frame bodies. The space frame provides increased buckling strength because the bar members and the diagonal members may be entirely joined by welding.Type: GrantFiled: February 17, 1989Date of Patent: April 3, 1990Assignee: Takenaka CorporationInventors: Kimihiko Mogami, Michihiko Ohta, Kouki Hatanaka, Noriaki Numakura, Mamoru Kimura, Akira Okada, Norihisa Okuno
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Patent number: 4790237Abstract: A damper for use in controlling the flow rate or direction of a flow of air or fumes flowing out from a room or space or flowing through a ventilation system, including a housing having at least one inlet opening. The housing has a tubular side wall in which are provided a plurality of outlet apertures opened and closed by associated closure members which are adapted to swing to and away from the side wall, preferable inwardly of the housing. The total flow area of the outlet apertures may be extended to a desired degree by increasing the axial length and diameter of the side wall of the housing, whereby the flow resistance and pressure drop across the damper are reduced.Type: GrantFiled: March 3, 1986Date of Patent: December 13, 1988Assignees: Takenaka Corporation, Kyoritsu Co., Ltd.Inventors: Masashi Usuda, Kiyoshi Shimizu, Eiji Iwata, Hideo Yamada, Kazutaka Onozuka, Toshio Kuno, Hideo Kuno, Yukio Kuno