Patents by Inventor Yoshihiro Narita
Yoshihiro Narita 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: 10382536Abstract: A device management apparatus is configured by execution of one or more programs to (i) acquire, from an external apparatus, a status-change information record for a status change that has occurred in a status-changed device, and (ii) determine whether or not the acquired status-change information record is a status-change information record for a managed device managed by the device management apparatus.Type: GrantFiled: December 8, 2015Date of Patent: August 13, 2019Assignee: RICOH COMPANY, LTD.Inventor: Yoshihiro Narita
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Publication number: 20160173580Abstract: A device management apparatus comprises: an acquisition unit that acquires, from an external apparatus, a status-change information record about a status change occurred in a first device; a determining unit that determines whether or not the acquired status-change information record is a status-change information record about the first device; a response-action instructing unit that instructs, if the status-change information record is determined as being a status-change information record about the first device, the first device to perform a response action based on the status-change information record; and a transmitting unit that transmits, if the status-change information record is determined as not being about the first device, information based on the status-change information record to another device management apparatus managing a second device that is different from the first device.Type: ApplicationFiled: December 8, 2015Publication date: June 16, 2016Applicant: RICOH COMPANY, LTD.Inventor: Yoshihiro Narita
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Publication number: 20130185461Abstract: A device management apparatus manages a device. The device management apparatus includes a contract information acquiring unit that acquires contract information on quality assurance of the device; a state information acquiring unit that acquires state information indicating a state of the device; a determining unit that determines whether the state of the device satisfies a content of a contract based on the contract information and the state information; and a notifying unit that notifies a determination result.Type: ApplicationFiled: January 16, 2013Publication date: July 18, 2013Inventors: Yoshihiro Narita, Atsushi Ishigaki
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Publication number: 20120259595Abstract: A device layout management apparatus that has a layout drawing data processing unit that displays a layout drawing that includes the layout of a building network and the location of a device, based on layout drawing data and device data stored in a layout drawing data storage unit and a device data storage unit, respectively. A device data acquisition unit acquires device data stored in the device. A layout information comparing unit compares the acquired device data with either layout drawing data stored in the layout drawing data storage unit or device data stored in the device data storage unit, and determines whether the two sets of layout information coincide. If the layout information comparing unit determines that the two sets of layout information do not coincide, the layout information processing unit has the layout change reporting unit report that the layout of the device has changed.Type: ApplicationFiled: March 22, 2012Publication date: October 11, 2012Inventor: Yoshihiro NARITA
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Patent number: 7190223Abstract: There is provided an amplifier that achieves stable distortion compensation without using a pilot signal even when there is a difference in level in the base signal of a multicarrier signal. The amplifier is a feedforward amplifier for amplifying a multifrequency wideband signal without using a pilot signal, and includes an input monitoring section in a signal input stage and an output monitoring section in a signal output stage, whereby for fluctuations in level of the signal from the monitoring sections, when the signal level is decreased to cause a significant decrease in the level of adjacent channel leakage power (ACP) and when the signal level does not decrease to cause a slight increase in ACP level, the controller shifts a set ACP reception frequency to an opposite frequency of the multicarrier signal, thereby achieving stable distortion compensation even when there is a difference in level in the base signal of a multicarrier signal.Type: GrantFiled: March 24, 2005Date of Patent: March 13, 2007Assignee: Hitachi Kokusai Electric Inc.Inventors: Hidekatsu Ueno, Yoshihiro Narita
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Publication number: 20050225387Abstract: There is provided an amplifier that achieves stable distortion compensation without using a pilot signal even when there is a difference in level in the base signal of a multicarrier signal. The amplifier is a feedforward amplifier for amplifying a multifrequency wideband signal without using a pilot signal, and includes an input monitoring section in a signal input stage and an output monitoring section in a signal output stage, whereby for fluctuations in level of the signal from the monitoring sections, when the signal level is decreased to cause a significant decrease in the level of adjacent channel leakage power (ACP) and when the signal level does not decrease to cause a slight increase in ACP level, the controller shifts a set ACP reception frequency to an opposite frequency of the multicarrier signal, thereby achieving stable distortion compensation even when there is a difference in level in the base signal of a multicarrier signal.Type: ApplicationFiled: March 24, 2005Publication date: October 13, 2005Inventors: Hidekatsu Ueno, Yoshihiro Narita
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Patent number: 4808192Abstract: In accordance with this invention an aqueous solution of a water-soluble dye containing lithium sulfonate group or ammonium sulfonate group can be obtained by a very simple and economical process in such a way that an aqueous solution of a water-soluble dye containing sodium sulfonate group is fed to a packed column packed with acid type cation exchange resin (H-form) to form an aqueous solution of a dye containing a free sulfonic acid group, and after neutralizing the resulting solution with LiOH or NH.sub.4 OH, the aqueous solution of the dye thus obtained is concentrated according to a process for separation through reverse osmotic membrane.Type: GrantFiled: September 15, 1986Date of Patent: February 28, 1989Assignee: Mitsubishi Chemical Industries LimitedInventors: Yoshihiro Narita, Hiroshi Takimoto, Hideo Sano
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Patent number: 4153780Abstract: A process is provided for preparing a polycarbonate composition with excellent weatherproof properties. The process comprises adding an ultraviolet absorbing compound having a hydroxy group which contributes at least partially to the molecular weight modifier to an oligomeric polycarbonate which is obtained by the reaction of a dioxy compound with phosgene, and then condensing said oligomeric polycarbonate to polymerize the same.Type: GrantFiled: January 14, 1974Date of Patent: May 8, 1979Assignee: Idemitsu Kosan Company LimitedInventors: Yoshihiro Narita, Hideo Konuma, Sanae Tagami, Hirosi Yamada
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Patent number: 4099897Abstract: An extrusion apparatus and method for producing foamed resin coatings on a wire. A foaming agent and molten resin are poured into a supply portion of an extruding screw and cylinder apparatus. The screw in the supply portion is tapered in the down stream direction. The screw and cylinder apparatus portion adjacent to the supply portion is arranged to blend the resin and foaming agent and has a lower coefficient of extrusion than the supply portion. The metering portion of the screw and cylinder apparatus is adjacent and down stream of the blend portion and has a higher coefficient of extrusion than the blend portion.Type: GrantFiled: November 4, 1975Date of Patent: July 11, 1978Assignee: Hitachi Cable, Ltd.Inventors: Hideo Takano, Satoshi Saito, Tadashi Sato, Tuyoshi Yamaguchi, Yoshihiro Narita
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Patent number: 4074864Abstract: A method of producing polycarbonate powder comprises continuously mixing and kneading a polycarbonate solution while heating same, the kneading being accomplished by producing a limited "to and fro" movement of the polycarbonate solution with the aid of a set of spiral blades mounted on rotating shafts in an elongated barrel.Type: GrantFiled: April 27, 1977Date of Patent: February 21, 1978Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yoshihiro Narita, Shigeaki Mochizuki, Shigeru Kakimoto, Norio Komori, Kiyoshi Watanabe, Hideji Shiota
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Patent number: 3974126Abstract: A heat resistant and impact resistant polycarbonate having a narrow distribution of molecular weight is continuously produced by reacting chloroformate ester, prepared in advance by reacting alkaline solution of dioxy compound in a turbulent flow of the two solutions while cooling and subsequently reacting the mixture concurrently in a laminar flow after the viscosity of the mixture has become significant.Type: GrantFiled: June 25, 1974Date of Patent: August 10, 1976Assignee: Idemitsu, Kosan Kabushiki-KaishaInventors: Yoshihiro Narita, Hideo Konuma, Hiroshi Nishitani, Norio Komori, Katsuharu Ogishima
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Patent number: 3945979Abstract: Compositions comprising a polycarbonate resin and a mixture of anthraquinone series colorants have excellent transparency.Type: GrantFiled: December 5, 1974Date of Patent: March 23, 1976Assignee: Idemitsu Kosan Company LimitedInventors: Haruo Kobayashi, Takenori Asajima, Yoshihiro Narita