Patents by Inventor Akio Sasaki
Akio Sasaki 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: 5133071Abstract: In a channel control for an information processing system, a service processor (SVP) loads a microprogram of the channel controller at system initialization, and thereafter initiates the microprogram for storing microprograms and configuration information for a plurality of channel units held in the SVP into the specified area of a main storage. Subsequently, the configuration information and microprograms from the main storage are loaded into the channel units under control of the microprogram of the channel controller. Thereby, the microprograms and configuration information are loaded into the channel units by a channel controller equipped with a fast-processing microprocessor and, eventually, a fast loading control and error correction process are accomplished.Type: GrantFiled: November 21, 1988Date of Patent: July 21, 1992Assignee: Hitachi, Ltd.Inventors: Tadashi Sato, Masahiro Yamashita, Shigeru Yamamoto, Akio Sasaki
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Patent number: 5052291Abstract: A screen printing method includes the steps of moving a doctor plate across a printing screen to apply a paste thereon and then moving a squeegee across the screen to deposit a paste on an object below the screen while maintaining a predetermined pressure of the screen against the object to produce a substantially even deposition of the paste. The method also can include varying the squeegee pressure as the screen tension varies to maintain the predetermined printing pressure and using a screen aligning mark on an imaging plane to correct the positional relationship between the screen and the object.Type: GrantFiled: October 20, 1989Date of Patent: October 1, 1991Assignee: TDK CorporationInventors: Tetsuo Takahashi, Akio Sasaki, Kunio Mogi, Hajime Shimazaki, Masakazu Hasegawa
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Patent number: 4922410Abstract: In an input/output process device for controlling data transfer between a central processing unit and an input/output device through a channel by use of any of a plurality of input/output control devices connected to the input/output device, a memory unit is disposed so as to store information representing the address of the input/output control device in association with an identification number of the channels connected to the input/output control device. When selecting the channel for data transfer, the input/output process device reads out the information representing the address of the input/output control device from the memory unit and generates the address for the input/output control device on the basis of the information read out.Type: GrantFiled: August 17, 1987Date of Patent: May 1, 1990Assignee: Hitachi, Ltd.Inventors: Takashi Morikawa, Tetuji Ogawa, Akio Sasaki, Kiichi Sato
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Patent number: 4893556Abstract: A screen printing apparatus capable of uniformly applying a paste onto a screen to accomplish fining of a printed pattern and formation of a fined printed pattern. The apparatus includes a pair of laterally movable printing heads alternately actuated for printing and each including a doctor plate and a squeegee which are vertically movably arranged. The doctor plates of the printing heads being arranged laterally opposite to each other on the screen. The doctor plates each serve to apply a paste onto the screen while transferring the paste on the screen and the squeegees each act ot press the screen against a printed object after application of the paste onto the screen by the doctor plate corresponding thereto.Type: GrantFiled: February 10, 1988Date of Patent: January 16, 1990Assignee: TDK CorporationInventors: Tetsuo Takahashi, Akio Sasaki, Kunio Mogi, Hajime Shimazaki, Masakazu Hasegawa
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Patent number: 4833702Abstract: In a wide area cordless telephone system, a wide service area is divided into a plurality of local service areas identified respectively by unique codes. Each local area has home position portable cordless telephones to which telephone numbers are permanently assigned and can accommodate roaming non-home position telephones belonging to other local areas. Each telephone receives a pre-registration polling signal from one of access units located at key points and returns a pre-registration response signal if a unique code contained in the received polling signal mismatches a stored area code. A controller in each local area assigns a reserved telephone number, if available, to a roaming telephone in response to such a response signal and registers this cordless telephone in memory. The controller then transmits an acknowledgement signal indicating the completion of a registration. The registered telephone responds to it by returning a post-registration signal which is monitored by the controller.Type: GrantFiled: May 13, 1988Date of Patent: May 23, 1989Assignees: NEC Corporation, Nippon Telephone and Telegraph CorporationInventors: Kenji Shitara, Akio Sasaki, Yoshitoshi Murata
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Patent number: 4792781Abstract: A chip resistor having configuration and dimensions of high precision and capable of operating with high reliability. The chip resistor includes end electrodes deposited on both side end surfaces of an insulating substrate according to a thin film deposition technique and integrally formed into a substantially C-shape so as to continuously and thoroughly cover the side end surfaces of the substrate. A resistance element may be formed according to either a thick film deposition technique or a thin film deposition technique. Also, a method for manufacturing such a chip resistor is provided.Type: GrantFiled: February 17, 1987Date of Patent: December 20, 1988Assignee: TDK CorporationInventors: Tetsuo Takahashi, Eisaku Miyauchi, Masayuki Yoshida, Shunichi Kumagai, Akio Sasaki
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Patent number: 4690119Abstract: In order that an EGR valve device for internal combustion engines of automobiles can be manufactured in a compact size and at a low cost and also that its valve member can be immediately brought to its valve-closing position whenever the driving motor of the device fails, the EGR valve device comprises a sector-shaped gear operatively coupled to a valve member urged to close the valve and capable of causing the valve member to make opening and closing movements, and a driving motor whose shaft of rotary member is disposed so as to intersect at right angles a plane containing the sector-shaped gear and is provided with a pinion meshed with the sector-shaped gear.Type: GrantFiled: August 6, 1986Date of Patent: September 1, 1987Assignee: Mikuni Kogyo Kabushiki KaishaInventors: Hiroshi Makino, Akio Sasaki
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Patent number: 4632711Abstract: A zinc selenide or zinc selenide-sulphide epitaxial crystal is grown at a growth temperature of about 180.degree.-320.degree. C. by organometallic chemical vapor deposition by using zinc alkyl and hydrogen selenide and/or hydrogen sulphide. An as-grown crystal presented an n conductivity type low resistivity and exhibited a narrow near-band gap emission peak. Besides a crystal of the same material as the epitaxial layer, crystals of group III-V, group IV, and so forth having the same or similar crystal structure as the epitaxial layer can be used as an underlayer for the growth.Type: GrantFiled: March 1, 1985Date of Patent: December 30, 1986Assignee: Sumitomo Chemical Company, LimitedInventors: Shigeo Fujita, Yoshinobu Matsuda, Akio Sasaki
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Patent number: 4424562Abstract: In a system including a single main storage or memory and two or more processing units sharing the main storage or memory, there are provided two address arrays for storing the addresses of the data of the main storage or memory which is stored in a buffer storage or memory, one address array storing the same addresses as those stored in the other address array. One of the address arrays is used for reference to the buffer storage or memory by the own or associated processing unit, while its other address array is used for detecting that the store address from another processing unit to the main storage or memory is coincident with one of the addresses stored therein. When the coincidence of addresses is detected, the corresponding address in the other address array is invalidated or cancelled, and the roles of the two address arrays are interchanged. Subsequently, the corresponding address in the one address array is invalidated cancelled.Type: GrantFiled: August 22, 1980Date of Patent: January 3, 1984Assignee: Hitachi, Ltd.Inventors: Kazutoshi Genma, Akio Sasaki
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Patent number: 4414183Abstract: The phenolic chelate resin has a chelate-forming group wherein part or all of the hydrogen atoms in a primary and/or secondary alkylamino group introduced in a phenol nucleus are replaced by a methylenephosphonate group. Also disclosed is a process for producing such a chelate resin, and a method for recovering heavy metal ions with such a resin. The resin has particularly high selectivity for adsorbing uranium ions, as well as high heat, acid and alkali resistance as well as dimensional stability. The resin is very effective for recovering uranium from various uranium-containing solutions such as sea water, crude phosphoric acid fertilizer solutions, low-grade uranium ore, waste water from uranium refining, and uranium mine water.Type: GrantFiled: July 20, 1982Date of Patent: November 8, 1983Assignee: Unitika Ltd.Inventors: Akio Sasaki, Yoshiaki Echigo
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Patent number: 4383104Abstract: The phenolic chelate resin has a chelate-forming group wherein part or all of the hydrogen atoms in a primary and/or secondary alkylamino group introduced in a phenol nucleus are replaced by a methylenephosphonate group. Also disclosed is a process for producing such a chelate resin, and a method for recovering heavy metal ions with such a resin. The resin has particularly high selectivity for adsorbing uranium ions, as well as high heat, acid and alkali resistance as well as dimensional stability. The resin is very effective for recovering uranium from various uranium-containing solutions such as sea water, crude phosphoric acid fertilizer solutions, lowgrade uranium ore, waste water from uranium refining, and uranium mine water.Type: GrantFiled: March 23, 1981Date of Patent: May 10, 1983Assignee: Unitika Ltd.Inventors: Akio Sasaki, Yoshiaki Echigo
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Patent number: 4305827Abstract: A heavy metal adsorbent of high selectivity, a process for the production thereof, and an adsorption process using the heavy metal adsorbent are described; the adsorbent exhibits high adsorptivity particularly for mercury, and has excellent chemical stability, e.g., heat resistance and alkali resistance, and dimensional stability. This adsorbent is applicable, e.g., to the removal of mercury from waste water resulting from the washing of smoke in huge incineration stations, from saturated brine used in the sodium industry in an ion exchange membrane method, and so forth.Type: GrantFiled: May 30, 1980Date of Patent: December 15, 1981Assignee: Unitika Ltd.Inventor: Akio Sasaki
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Patent number: 4205414Abstract: A reciprocating type tenderizer is driven by a rotary crank to enable higher operating speeds and much higher cutting edge velocities. The surface of the conveyor is maintained within 1-2 mm of the bottom dead center position of the cutting edges to provide more complete penetration and a torque limiter is provided for interrupting the conveyor movement during cutting. Novel cutting edge configurations are also provided which are suitable for a wide variety of meats.Type: GrantFiled: May 15, 1978Date of Patent: June 3, 1980Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Saburo Ueno, Koji Satomi, Akio Sasaki
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Patent number: 4015187Abstract: There is provided an exciter arrangement for generators comprising an internal combustion engine, a generator coupled with the internal combustion engine and driven thereby, an exciter for regulating excitation of the exciter, a detector for detecting a value responsive to a revolution number of the internal combustion engine, and a controller for controlling the exciter in response to an output of the detector.Type: GrantFiled: October 4, 1974Date of Patent: March 29, 1977Assignee: Hitachi, Ltd.Inventors: Akio Sasaki, Kiyoteru Kuwabara, Hisakatsu Kiwaki
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Patent number: 3940680Abstract: A power converter which can operate with both a D.C. power source and an A.C. power source for supplying electric power to a D.C. load such as a D.C. motor. The power converter comprises thyristors, a diode, a reactor and a capacitor. A plurality of series circuits each including two series-connected thyristors are connected in parallel to provide A.C. terminals at the series connection points of the thyristors and to provide D.C. terminals at the parallel connection points of the series circuits. The diode is interposed between the parallel-connected series circuits of the thyristors, and the reactor and the capacitor are connected in series to form a series circuit which is connected in parallel with the series circuits of the thyristors. The power converter is connected at the D.C. terminals between the power source and the load to function as a chopper when the power source supplies D.C. power to the load. On the other hand, when the power source supplies A.C.Type: GrantFiled: December 24, 1974Date of Patent: February 24, 1976Assignee: Hitachi, Ltd.Inventors: Tomio Tadokoro, Toshikatsu Kouno, Akio Sasaki