Patents by Inventor Motoaki Iwasaki
Motoaki Iwasaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8666955Abstract: A data management system respectively computes first hash values while sliding a window a prescribed amount at a time with respect to a prescribed range from a start location of a data block to a prescribed size. The system extracts, from among the first hash values, a first hash value, which is equivalent to a characteristic value, and partitions the data block into a first chunk of data at a location corresponding to this first hash value. The system determines coincidence between a first chunk of data and a stored second chunk of data, and prevents duplicate data from being stored twice.Type: GrantFiled: April 11, 2011Date of Patent: March 4, 2014Assignees: Hitachi, Ltd., Hitachi Information & Telecommunication Engineering, Ltd.Inventors: Naomitsu Tashiro, Taizo Hori, Motoaki Iwasaki
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Publication number: 20130013880Abstract: The de-duplication effect is enhanced even when managing data blocks by dividing them into fixed-length data. Every time a data block is entered, a controller for managing data blocks: sequentially sets a search area of a fixed size from a top of each data block to an end thereof; calculates a first hash value of data belonging to each search area; allocates a search area(s), for which the first hash value becomes a first set value, to a first chunk from among each of the search areas; allocates a search area(s), for which the first hash value is a minimum value, to a second chunk from among the search areas existing in an area larger than the search area if the area larger than the search area exists in an area other than the area to which the first chunk is allocated; allocates an area(s) smaller than the search area to a third chunk; calculates a second hash value from data of each chunk; and manages chunks having the same second hash value, as de-duplication chunks.Type: ApplicationFiled: July 8, 2011Publication date: January 10, 2013Inventors: Naomitsu Tashiro, Taizo Hori, Motoaki Iwasaki
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Publication number: 20120259825Abstract: A data management system respectively computes first hash values while sliding a window a prescribed amount at a time with respect to a prescribed range from a start location of a data block to a prescribed size. The system extracts, from among the first hash values, a first hash value, which is equivalent to a characteristic value, and partitions the data block into a first chunk of data at a location corresponding to this first hash value. The system determines coincidence between a first chunk of data and a stored second chunk of data, and prevents duplicate data from being stored twice.Type: ApplicationFiled: April 11, 2011Publication date: October 11, 2012Inventors: Naomitsu Tashiro, Taizo Hori, Motoaki Iwasaki
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Publication number: 20050160552Abstract: A cleaning apparatus cleans an object to be cleaned by ejecting a cleaning agent from a nozzle. The cleaning apparatus includes a gas ejecting device for ejecting heated gas to a surface of the object to be cleaned. The gas ejecting device is configured to move to a position above the object to be cleaned when cleaning is performed, and retract from the object to be cleaned when cleaning is not performed. An ejection quantity of the heated gas is controlled when cleaning is performed and when cleaning is not performed.Type: ApplicationFiled: May 28, 2004Publication date: July 28, 2005Inventors: Takashi Yoshida, Osayasu Kikuchi, Motoaki Iwasaki, Kurao Habaya, Tatsuro Yano, Takahiro Shiroma
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Patent number: 6899110Abstract: The present invention can remove particles such as dust by flowing solvent gas such as CO2 through a line filter and eject it from a nozzle so as to be converted to solid particles or liquid droplets and eject to a workpiece to be cleaned so as to clean particles or organic materials. It is possible to make the solvent to a solid particle or liquid droplet by adjusting a gap between the nozzle and the workpiece to be cleaned; thus, it is possible to select the most preferable state according to the extent of the adhesion of organic material to the workpiece to be cleaned. Also, it is possible to remove particles such dust in the solvent by a line filter; thus, it is not necessary to use highly pure expensive solvent, and it is possible to reduce the running cost of the apparatus.Type: GrantFiled: June 20, 2002Date of Patent: May 31, 2005Assignee: Fuji Electric Co., Ltd.Inventors: Takashi Yoshida, Motoaki Iwasaki, Tatsuro Yano, Kurao Habaya, Takahiro Shiroma
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Patent number: 6701323Abstract: A distributed object system having a load balancing feature that can be expanded by adding a new computer to the cluster of server computers. Objects can be activated and deactivated and system service alteration is performed by renewing objects. By request from a client, the object invocation unit obtains object code and object data from the object access unit in response to remote object invocation, executes the requested method, and requests the object access unit to overwrite the object data. The object manager unit activates or deactivates an object.Type: GrantFiled: January 29, 2001Date of Patent: March 2, 2004Assignee: Hitachi, Ltd.Inventors: Atsushi Sashino, Motoaki Iwasaki, Yuuichiro Chaki
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Publication number: 20030005949Abstract: The present invention can remove particles such as dust by flowing solvent gas such as CO2 through a line filter and eject it from a nozzle so as to be converted to solid particles or liquid droplets and eject to a workpiece to be cleaned so as to clean particles or organic materials. It is possible to make the solvent to a solid particle or liquid droplet by adjusting a gap between the nozzle and the workpiece to be cleaned; thus, it is possible to select the most preferable state according to the extent of the adhesion of organic material to the workpiece to be cleaned. Also, it is possible to remove particles such dust in the solvent by a line filter; thus, it is not necessary to use highly pure expensive solvent, and it is possible to reduce the running cost of the apparatus.Type: ApplicationFiled: June 20, 2002Publication date: January 9, 2003Applicant: Yokogawa Electric Corporation and Fuji Electric Co., Ltd.Inventors: Takashi Yoshida, Motoaki Iwasaki, Tatsuro Yano, Kurao Habaya, Takahiro Shiroma
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Publication number: 20010032239Abstract: The invention offers a distributed object system that is provided with a load balancing feature and can easily be expanded by adding a new computer to the cluster of server-run computers. By the invention, objects are easily activated and deactivated and easy system service alteration is performed by renewing objects.Type: ApplicationFiled: January 29, 2001Publication date: October 18, 2001Inventors: Atsushi Sashino, Motoaki Iwasaki, Yuuichirou Chaki
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Patent number: 4350854Abstract: A pressure-sensitive switch unit forming part of a resonator assembly for use in a tire pressure drop detecting apparatus of the electromagnetic induction type, wherein an atmospheric chamber, formed in a casing structure and hermetically isolated by a diaphragm from a pressure-acting chamber communicating with the tire chamber in a tire-and-wheel assembly, communicates with the atmosphere through contact surfaces of two or three of the component parts of the casing structure and further through a body of a gas-permeable synthetic rubber in part exposed to the atmosphere so that an atmospheric pressure is at all times introduced into the atmosphere atmospheric chamber and an ingress of water and dust into the atmospheric chamber is precluded by the body of the gas-permeable synthetic rubber.Type: GrantFiled: June 27, 1980Date of Patent: September 21, 1982Assignees: Bridgestone Tire Company Limited, Mitaka Instrument Company LimitedInventors: Akira Matsuda, Yoshihiro Havakawa, Shigeo Yasuda, Motoaki Iwasaki, Hiroshi Nishino
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Patent number: 4348654Abstract: A tire internal pressure control apparatus for tired vehicles comprising a resonance coil assembly secured to a rotational body of a vehicle and an oscillation coil assembly secured to a stationary vehicle body side, these assemblies being distant apart from each other and electromagnetically coupled with each other and operative to produce resonance phenomenon and generate a signal sensitive to the internal pressure of the tire. The signal is displayed at a driver's seat without utilizing any expensive and complex integrated circuit.Type: GrantFiled: December 9, 1980Date of Patent: September 7, 1982Assignee: Bridgestone Tire Company LimitedInventors: Akira Matsuda, Yoshihiro Hayakawa, Shigeo Yasuda, Motoaki Iwasaki
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Patent number: 4337652Abstract: An apparatus for detecting a pressure drop in a tire chamber of a tire-and-wheel assembly for an automotive vehicle, comprising an oscillator assembly held stationary with respect to the vehicle body structure and a resonator assembly mounted on the wheel rim of the tire-and-wheel assembly, wherein the resonator assembly comprises a resonant inductor and a resonant capacitor which are electrically connected together across a pressure-sensitive switch unit directly communicating with the tire chamber and which are positioned together with a portion of the switch unit within a protective receptacle secured to the wheel rim and wherein the resonant inductor and capacitor and the portion of the switch unit are encapsulated in a body of potting compound forming a potted resonance circuit structure within the protective receptacle, the switch unit and the resonant capacitor being positioned intermally of the resonant inductor.Type: GrantFiled: June 9, 1980Date of Patent: July 6, 1982Assignees: Bridgestone Tire Company Limited, Mitaka Instrument Company LimitedInventors: Akira Matsuda, Yoshihiro Hayakawa, Shigeo Yasuda, Motoaki Iwasaki, Hiroshi Nishino
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Patent number: 4300118Abstract: A tire inner pressure drop alarming device comprises an oscillation section mounted on a vehicle body in the vicinity of a vehicle wheel, a resonance section mounted on a peripheral portion of a tire and including a resonance coil, a signal processing and alarming section mounted on the vehicle body in spaced relation with the vehicle wheel, and a coaxial cable connecting the oscillation section and the signal processing and alarming section. The resonance coil has a major length measured in the direction of rotation and longer than a minor length of the resonance coil in a direction perpendicular to the direction of rotation. The ratio of the minor length to the major length ranges from 0.2 to 1.0.Type: GrantFiled: February 15, 1979Date of Patent: November 10, 1981Assignees: Bridgestone Tire Company Limited, Mitaka Instrument Company LimitedInventors: Akira Matsuda, Norio Goshima, Shigeo Yasuda, Motoaki Iwasaki, Hiroshi Nishino
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Patent number: 4275377Abstract: An alarm device for signalling a reduction of pneumatic vehicle tire pressure comprises an oscillator 6 having an oscillation coil secured to a chassis of a vehicle; and a resonator 1 secured to the peripheral portion of a wheel having a tire adjacent to the oscillation coil and consisting of a pressure switch 4 for sensing an abnormal tire pressure change and a resonance coil and a capacitor 5 tuned to an electromagnetic wave radiated from the oscillation coil. A signal processing device contains a means for sensing a change in an oscillation condition generated in the oscillator due to a resonant condition of the resonator switched on and off in accordance with abnormal internal tire pressure and for processing a signal from the sensing means; and an alarm for generating a warning signal in accordance with the output of the signal processing device.Type: GrantFiled: June 18, 1979Date of Patent: June 23, 1981Assignees: Bridgestone Tire Co., Ltd., Mitaka Instrument Co., Ltd.Inventors: Akira Matsuda, Norio Goshima, Shigeo Yasuda, Motoaki Iwasaki, Hiroshi Nishino
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Patent number: 4267546Abstract: An alarm device for signalling a reduction of pneumatic pressure of vehicle tires comprises an oscillator 6 having coil secured to a chassis of a vehicle, and a resonator 1 secured to the peripheral portion of a wheel having a tire adjacent to the coil and consisting of a pressure switch 4 for sensing an abnormal change of tire pressure, and a resonant coil and a capacitor 5 tuned to an electromagnetic wave radiated from the oscillation coil. A signal processing device contains means for sensing a change in an oscillation condition generated in the oscillator due to a resonant condition of the resonator switched on and off in accordance with abnormal internal tire pressure and for processing a signal from the sensing means, and an alarm for generating a warning signal in accordance with the output of the signal processing device.Type: GrantFiled: June 18, 1979Date of Patent: May 12, 1981Assignees: Bridgestone Tire Company Limited, Mitaka Instrument Company LimitedInventors: Akira Matsuda, Norio Goshima, Shigeo Yasuda, Motoaki Iwasaki, Hiroshi Nishino
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Patent number: 4254398Abstract: This invention is concerned with a tire pressure drop alarming apparatus for signaling an abnormal pressure drop of a pneumatic tire by transforming the pressure drop into an electric signal.The apparatus comprises a resonating circuit including a resonance coil and a resonance condenser and includes a retaining body made of metal.Type: GrantFiled: September 27, 1978Date of Patent: March 3, 1981Assignees: Bridgestone Tire Company Limited, Mitaka Instrument Company LimitedInventors: Akira Matsuda, Norio Goshima, Shigeo Yasuda, Motoaki Iwasaki, Hiroshi Nishino
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Patent number: 4211901Abstract: A pressure sensing switch for transducing the change of pneumatic pressure to an electrical signal comprises a diaphragm made of a material having a Young's modulus E of 1.0.times.10.sup.4 -2.1.times.10.sup.4 kg/mm.sup.2, a Poisson's ratio V of 0.3, a thickness t of 0.02-0.2mm, a diameter d measured at a radially inner edge of a side wall portion being 5-10mm, a ratio of a radius or curvature R measured at a deflectable portion to a diameter d measured at the radially inner edge of the side wall portion being 2.Type: GrantFiled: December 21, 1978Date of Patent: July 8, 1980Assignees: Bridgestone Tire Company Limited, Mitaka Instrument Company LimitedInventors: Akira Matsuda, Norio Goshima, Shigeo Yasuda, Motoaki Iwasaki