Patents by Inventor Katsunori Hayashi
Katsunori Hayashi 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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Publication number: 20170292200Abstract: The present invention provides a non-cyanide based Au—Sn alloy plating solution capable of performing a Au—Sn alloy plating treatment by a plating solution composition that is neutral and does not contain cyanide. In the present invention, a non-cyanide soluble gold salt, a Sn compound composed of tetravalent Sn, and a thiocarboxylic acid-based compound are contained. The non-cyanide based Au—Sn alloy plating solution of the present invention can further contain sugar alcohols, and, in addition, can further contain a dithioalkyl compound.Type: ApplicationFiled: March 29, 2017Publication date: October 12, 2017Applicant: Electroplating Engineers of Japan LimitedInventor: Katsunori Hayashi
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Patent number: 9354861Abstract: A software update system includes an administration server, a wireless communication terminal, and a wireless-communication key station. The wireless communication terminal is configured to be connected to the administration server through a communication network. The a wireless-communication key station is configured to be positioned between the administration server and the wireless communication terminal, and to perform processing of distributing software of an update object transmitted from the administration server to the wireless communication terminal.Type: GrantFiled: September 8, 2014Date of Patent: May 31, 2016Assignee: FUJITSU LIMITEDInventors: Shigemasa Matsubara, Katsumi Okuda, Hajimu Hirai, Yukio Hayashi, Yasuaki Kamimura, Masahiro Machida, Masashi Kuwahara, Joji Maruyama, Takao Ito, Katsunori Hayashi
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Publication number: 20150299520Abstract: Provided is an adhesive sheet for an image display device (1), the adhesive sheet including a film-like adhesive layer (2), and a pair of substrate layers (3) and (4) laminated so as to interpose the adhesive layer (2) therebetween, in which the adhesive layer (2) contains a structural unit derived from stearyl (meth)acrylate as a main component, and has a haze value of 1.5% or less.Type: ApplicationFiled: October 11, 2013Publication date: October 22, 2015Applicant: HITACHI CHEMICAL COMPANY, LTD.Inventors: Youichirou Mansei, Kouji YAMAZAKI, Tomoyuki nakamura, Satoshi OHKAWA, Kazuo AIZU, Katsunori HAYASHI, Kenichi SHINYA, Junichi IMAIZUMI, Hiroaki TAKAHASHI
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Publication number: 20140380298Abstract: A software update system includes an administration server, a wireless communication terminal, and a wireless-communication key station. The wireless communication terminal is configured to be connected to the administration server through a communication network. The a wireless-communication key station is configured to be positioned between the administration server and the wireless communication terminal, and to perform processing of distributing software of an update object transmitted from the administration server to the wireless communication terminal.Type: ApplicationFiled: September 8, 2014Publication date: December 25, 2014Applicant: FUJITSU LIMITEDInventors: Shigemasa MATSUBARA, Katsumi OKUDA, Hajimu HIRAI, Yukio HAYASHI, Yasuaki KAMIMURA, Masahiro MACHIDA, Masashi KUWAHARA, Joji MARUYAMA, Takao ITO, Katsunori HAYASHI
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Patent number: 8656036Abstract: A distribution method is performed in a distribution system including a distribution source device for distributing data and a plurality of distribution destination devices. The distribution method includes searching, by the distribution source device, for the distribution destination devices by expanding a search range by plural stages; executing in each stage, by the distribution source device, an allowance process of allowing distribution of the data to the distribution destination devices found by searching in each stage; detecting in a predetermined range, by the distribution destination device, another distribution destination device that has acquired the data before the distribution destination device performing the detecting; and executing, by the distribution destination device, an acquiring process of acquiring the data from the other distribution destination device, according to allowance of distribution.Type: GrantFiled: June 1, 2012Date of Patent: February 18, 2014Assignee: Fujitsu LimitedInventors: Joji Maruyama, Katsunori Hayashi, Shinichi Hirata, Takahiro Koharagi, Takuji Furusawa, Hiroaki Kawasumi, Masaharu Nozawa, Katsumi Kobayashi
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Publication number: 20120311042Abstract: A distribution method is performed in a distribution system including a distribution source device for distributing data and a plurality of distribution destination devices. The distribution method includes searching, by the distribution source device, for the distribution destination devices by expanding a search range by plural stages; executing in each stage, by the distribution source device, an allowance process of allowing distribution of the data to the distribution destination devices found by searching in each stage; detecting in a predetermined range, by the distribution destination device, another distribution destination device that has acquired the data before the distribution destination device performing the detecting; and executing, by the distribution destination device, an acquiring process of acquiring the data from the other distribution destination device, according to allowance of distribution.Type: ApplicationFiled: June 1, 2012Publication date: December 6, 2012Applicant: FUJITSU LIMITEDInventors: Joji Maruyama, Katsunori Hayashi, Shinichi Hirata, Takahiro Koharagi, Takuji Furusawa, Hiroaki Kawasumi, Masaharu Nozawa, Katsumi Kobayashi
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Patent number: 7667918Abstract: Provided is a highly reliable disk array device.Type: GrantFiled: August 8, 2005Date of Patent: February 23, 2010Assignee: Hitachi, Ltd.Inventors: Katsunori Hayashi, Hiroshi Suzuki, Tomokazu Yokoyama, Toshiyuki Nagamori
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Patent number: 7548502Abstract: HDD boxes 831 to 83n are each incorporated with a secondary battery box 87, a non-isolated DC/DC converter 89, and an HDD 91. Logical circuit boards 851 to 85n are each incorporated with the secondary battery box 87, fast-transient-response-type non-isolated DC/DC converters 931 to 933, and a plurality of loads 951 to 953. Every secondary battery box 87 is provided with a charge/discharge circuit 97, and a plurality of in-line secondary batteries 99. In the HDD box, the output voltage from the secondary battery box 87 goes to an HDD 91 via the DC/DC converter 89. In the logical circuit board, the output voltage from the secondary battery box 87 goes to the corresponding loads 951 to 953 via the DC/DC converters 931 to 933. With such a structure, in a disk array apparatus, realized are higher energy efficiency and less space occupation through reducing power loss and optimizing power capacity setting for a backup power.Type: GrantFiled: February 24, 2006Date of Patent: June 16, 2009Assignee: Hitachi, Ltd.Inventor: Katsunori Hayashi
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Publication number: 20080318075Abstract: A photocurable resin composition comprising a (meth)acrylate ester with a sulfur content of no more than 5 ppm is disclosed. This photocurable resin composition is preferably used in a coating material or an adhesive, or in an adhesive layer or a protective layer formed on top of the metal layer of an optical disk.Type: ApplicationFiled: September 16, 2005Publication date: December 25, 2008Applicant: HITACHI CHEMICAL CO., LTD.Inventors: Katsunori Hayashi, Akihiro Kobayashi, Junichi Kamei
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Patent number: 7254742Abstract: The disk array device supplies appropriate power to various parts in accordance with the operating mode in cases where the output of the main power supply drops. The disk array device adjusts the power from a commercial power source 6 with an AC/DC power supply 5, and supplies this power to a power supply common bus 7. A disk drive group 1 and a control circuit board group 2 constituting electrical loads are respectively connected to the power supply common bus 7. When the supply of power from the main power supply stops, the capacitor box 3 supplies a relatively large current for a short time only, in order to retain data during an instantaneous power outage. Then, the battery boxes 4 supply power to the power supply common bus 7 for a relatively long period of time, in order to perform destage control and memory backup. The battery boxes 4 perform balancing control of the output current in order to suppress variation in the output current value among the battery boxes 4.Type: GrantFiled: July 27, 2004Date of Patent: August 7, 2007Assignee: Hitachi, Ltd.Inventor: Katsunori Hayashi
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Patent number: 7170273Abstract: The object of the invention is to compensate an effect of a voltage drop emerging in output voltage by the equivalent series resistance of a power output filter in a power-supply device. To achieve the object, a power-supply device wherein the power output filter that passes output power and first and second filters provided separately from the power output filter are provided, the first filter provided separately and one input terminal of an error amplifier are connected, new reference voltage acquired by adding differential voltage between the output of the second filter provided separately and the output of the power output filter to reference voltage is input to the other input terminal of the error amplifier and an output signal is fed back to the error amplifier is provided. According to the power-supply device, a voltage drop by equivalent series resistance emerging the output voltage of the power-supply device can be compensated.Type: GrantFiled: August 6, 2004Date of Patent: January 30, 2007Assignee: Hitachi, Ltd.Inventors: Takashi Sase, Akihiko Kanouda, Katsunori Hayashi
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Publication number: 20060250724Abstract: Provided is a highly reliable disk array device.Type: ApplicationFiled: August 8, 2005Publication date: November 9, 2006Inventors: Katsunori Hayashi, Hiroshi Suzuki, Tomokazu Yokoyama, Toshiyuki Nagamori
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Publication number: 20060140069Abstract: HDD boxes 831 to 83n are each incorporated with a secondary battery box 87, a non-isolated DC/DC converter 89, and an HDD 91. Logical circuit boards 851 to 85n are each incorporated with the secondary battery box 87, fast-transient-response-type non-isolated DC/DC converters 931 to 933, and a plurality of loads 951 to 953. Every secondary battery box 87 is provided with a charge/discharge circuit 97, and a plurality of in-line secondary batteries 99. In the HDD box, the output voltage from the secondary battery box 87 goes to an HDD 91 via the DC/DC converter 89. In the logical circuit board, the output voltage from the secondary battery box 87 goes to the corresponding loads 951 to 953 via the DC/DC converters 931 to 933. With such a structure, in a disk array apparatus, realized are higher energy efficiency and less space occupation through reducing power loss and optimizing power capacity setting for a backup power.Type: ApplicationFiled: February 24, 2006Publication date: June 29, 2006Applicant: Hitachi, Ltd.Inventor: Katsunori Hayashi
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Patent number: 7038984Abstract: HDD boxes 831 to 83n are each incorporated with a secondary battery box 87, a non-isolated DC/DC converter 89, and an HDD 91. Logical circuit boards 851 to 85n are each incorporated with the secondary battery box 87, fast-transient-response-type non-isolated DC/DC converters 931 to 933, and a plurality of loads 951 to 953. Every secondary battery box 87 is provided with a charge/discharge circuit 97, and a plurality of in-line secondary batteries 99. In the HDD box, the output voltage from the secondary battery box 87 goes to an HDD 91 via the DC/DC converter 89. In the logical circuit board, the output voltage from the secondary battery box 87 goes to the corresponding loads 951 to 953 via the DC/DC converters 931 to 933. With such a structure, in a disk array apparatus, realized are higher energy efficiency and less space occupation through reducing power loss and optimizing power capacity setting for a backup power.Type: GrantFiled: April 8, 2004Date of Patent: May 2, 2006Assignee: Hitachi, Ltd.Inventor: Katsunori Hayashi
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Publication number: 20050270927Abstract: The disk array device supplies appropriate power to various parts in accordance with the operating mode in cases where the output of the main power supply drops. The disk array device adjusts the power from a commercial power source 6 with an AC/DC power supply 5, and supplies this power to a power supply common bus 7. A disk drive group 1 and a control circuit board group 2 constituting electrical loads are respectively connected to the power supply common bus 7. When the supply of power from the main power supply stops, the capacitor box 3 supplies a relatively large current for a short time only, in order to retain data during an instantaneous power outage. Then, the battery boxes 4 supply power to the power supply common bus 7 for a relatively long period of time, in order to perform destage control and memory backup. The battery boxes 4 perform balancing control of the output current in order to suppress variation in the output current value among the battery boxes 4.Type: ApplicationFiled: July 27, 2004Publication date: December 8, 2005Inventor: Katsunori Hayashi
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Publication number: 20050182981Abstract: HDD boxes 831 to 83n are each incorporated with a secondary battery box 87, a non-isolated DC/DC converter 89, and an HDD 91. Logical circuit boards 851 to 85n are each incorporated with the secondary battery box 87, fast-transient-response-type non-isolated DC/DC converters 931 to 933, and a plurality of loads 951 to 953. Every secondary battery box 87 is provided with a charge/discharge circuit 97, and a plurality of in-line secondary batteries 99. In the HDD box, the output voltage from the secondary battery box 87 goes to an HDD 91 via the DC/DC converter 89. In the logical circuit board, the output voltage from the secondary battery box 87 goes to the corresponding loads 951 to 953 via the DC/DC converters 931 to 933. With such a structure, in a disk array apparatus, realized are higher energy efficiency and less space occupation through reducing power loss and optimizing power capacity setting for a backup power.Type: ApplicationFiled: April 8, 2004Publication date: August 18, 2005Applicant: HITACHI, LTD.Inventor: Katsunori Hayashi
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Publication number: 20050127881Abstract: The object of the invention is to compensate an effect of a voltage drop emerging in output voltage by the equivalent series resistance of a power output filter in a power-supply device. To achieve the object, a power-supply device wherein the power output filter that passes output power and first and second filters provided separately from the power output filter are provided, the first filter provided separately and one input terminal of an error amplifier are connected, new reference voltage acquired by adding differential voltage between the output of the second filter provided separately and the output of the power output filter to reference voltage is input to the other input terminal of the error amplifier and an output signal is fed back to the error amplifier is provided. According to the power-supply device, a voltage drop by equivalent series resistance emerging the output voltage of the power-supply device can be compensated.Type: ApplicationFiled: August 6, 2004Publication date: June 16, 2005Inventors: Takashi Sase, Akihiko Kanouda, Katsunori Hayashi
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Publication number: 20050127886Abstract: A step-down type DC-DC power supply device implements both the stabilization of the control loop and the responsibility at the same time. In the power-supply device, an output power signal is fed back to an error amplifier after having passed through a CR smoothing filter provided independently of a power LC smoothing filter. Also, independently of the duty controls over Power MOSFETs, i.e., upper-side/lower-side semiconductor switching components in the steady state, an output from the power LC smoothing filter is added to an upper and lower limit-mode-equipped control circuit, thereby, at the transient state, forcefully setting the duty ? at either 0% or 100%.Type: ApplicationFiled: January 27, 2005Publication date: June 16, 2005Inventors: Takashi Sase, Koji Tateno, Akihiko Kanouda, Katsunori Hayashi, Shinichi Yoshida
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Patent number: 6879137Abstract: A step down type DC-DC power-supply device implements both the stabilization of the control loop and the responsibility at the same time. In the power-supply device, an output power signal is fed back to an error amplifier after having passed through a CR smoothing filter provided independently of a power LC smoothing filter. Also, independently of the duty controls over Power MOSFETs, i.e., upper-side/lower-side semiconductor switching components in the steady state, an output from the power LC smoothing filter is added to an upper and lower limit-mode-equipped control circuit, thereby, at the transient state, forcefully setting the duty ? at either 0% or 100%.Type: GrantFiled: September 10, 2004Date of Patent: April 12, 2005Assignee: Hitachi, Ltd.Inventors: Takashi Sase, Koji Tateno, Akihiko Kanouda, Katsunori Hayashi, Shinichi Yoshida
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Publication number: 20050029997Abstract: A step-down type DC-DC power-supply device implements both the stabilization of the control loop and the responsibility at the same time. In the power-supply device, an output power signal is fed back to an error amplifier after having passed through a CR smoothing filter provided independently of a power LC smoothing filter. Also, independently of the duty controls over Power MOSFETs, i.e., upper-side/lower-side semiconductor switching components in the steady state, an output from the power LC smoothing filter is added to an upper and lower limit-mode-equipped control circuit, thereby, at the transient state, forcefully setting the duty ? at either 0% or 100%.Type: ApplicationFiled: September 10, 2004Publication date: February 10, 2005Inventors: Takashi Sase, Koji Tateno, Akihiko Kanouda, Katsunori Hayashi, Shinichi Yoshida