Patents by Inventor Masahiro Arai
Masahiro Arai 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: 20140104967Abstract: A data transfer device that transfers data to a memory according to an instruction from a processor via a bus through which a response indicating completion of data writing in the memory is not sent back, comprises an inter-memory data transfer control unit including an operation start trigger receiving unit, a parameter acquiring unit, a read unit, and a write unit. When the write unit detects switching of a write destination memory, the write unit confirms write completion as to the memory by a procedure different from writing. When a data transfer instructed by the processor is completed, the write unit confirms write completion as to the write destination memory at the end of the data transfer by the procedure different from writing. The inter-memory data transfer control unit notifies the processor of completion of an inter-memory data transfer based on the confirmation of the write completion.Type: ApplicationFiled: October 14, 2013Publication date: April 17, 2014Applicant: HITACHI, LTD.Inventors: Masahiro ARAI, Hiroshi HIRAYAMA, Masanori TAKADA, Hiroshi KANAYAMA, Hideaki FUKUDA
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Publication number: 20140065284Abstract: An oil and fat composition is provided which can reduce cooked odors without using an additive such as emulsifier. The oil and fat composition includes an oil and fat produced by oxidizing a fresh oil and fat so that a difference in anisidine value before and after the oxidation is 0.5 to 350, and an edible oil and fat. An added anisidine value of the oil and fat composition is 0.07 to 350 and is further calculated by the following formula: added anisidine value=(anisidine value after oxidation?anisidine value before oxidation)×[additive amount (wt. %)].Type: ApplicationFiled: November 5, 2013Publication date: March 6, 2014Applicant: J-OIL MILLS, INC.Inventors: Masahiro ARAI, Tsutomu HANAJIRI, Yuzo YAMADA, Hiroatsu HAGIRI
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Patent number: 8572342Abstract: A data transfer device that confirms completion of writing into a memory on transferring data to the memory via a bus through which a response indicating completion of data writing in the memory is not sent back includes an inter-memory data transfer control unit performing data transfer between the memories. When the inter-memory data transfer control unit detects switching of a write destination memory from a first memory to a second memory, in order to confirm that writing into the first memory is completed, the inter-memory data transfer control unit performs confirmation of write completion as to the first memory by a procedure different from writing into the memory.Type: GrantFiled: June 1, 2010Date of Patent: October 29, 2013Assignee: Hitachi, Ltd.Inventors: Masahiro Arai, Hiroshi Hirayama, Masanori Takada, Hiroshi Kanayama, Hideaki Fukuda
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Patent number: 8402210Abstract: Provided is a disk array system which is connected to a computer and which data is transmitted by the computer, including: a plurality of disk drives for storing user data transmitted by the computer; a cache memory for temporarily storing data sent/received among the computer and the plurality of disk drives; and a control unit for controlling input/output of the data to/from the cache memory, in which the control unit stores user data identification information that is capable of judging whether the user data is stored in a sector of the disk drive. The disk array system according to this invention allows the identification of user data of a disk drive.Type: GrantFiled: April 13, 2009Date of Patent: March 19, 2013Assignee: Hitachi, Ltd.Inventors: Akihiro Mannen, Yoichi Mizuno, Masahiro Arai
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Patent number: 8330706Abstract: A lighting device for a display device includes a light source and a light source control device arranged to control the light source. The light source control device is arranged to generate a pulse signal as a light source control signal Vcon to control the light source. The light source control signal Vcon includes pulses, which individually have different shapes.Type: GrantFiled: December 25, 2007Date of Patent: December 11, 2012Assignee: Sharp Kabushiki KaishaInventor: Masahiro Arai
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Patent number: 8321622Abstract: The first controller includes a first relay circuit which is a circuit that controls data transfer, and a first processor coupled to the first relay circuit via a first second path. The second controller includes a second relay circuit which is a circuit that controls data transfer, and is coupled to the first relay circuit via the first path, and a second processor coupled to the second relay circuit via a second second path. The first processor is coupled to the second relay circuit not via the first relay circuit but via a first third path, and accesses the second relay circuit via the first third path during an I/O process. The second processor is coupled to the first relay circuit not via the second relay circuit but via a second third path, and accesses the first relay circuit via the second third path during an I/O process.Type: GrantFiled: November 10, 2009Date of Patent: November 27, 2012Assignee: Hitachi, Ltd.Inventors: Shuji Nakamura, Emi Nakamura, legal representative, Masahiro Arai, Hideaki Fukuda, Nobuyuki Minowa
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Patent number: 8258718Abstract: A lighting device (8) including a cold-cathode fluorescent tube (light source) (9) includes an inverter circuit (16) connected to the cold-cathode fluorescent tube (9) and configured so as to driving the cold-cathode fluorescent tube (9), using PWM dimming. The inverter circuit (16) drives the cold-cathode fluorescent tube (9) while a dimming signal in the PWM dimming and a driving signal for driving the cold-cathode fluorescent tube (9) are synchronized.Type: GrantFiled: October 3, 2008Date of Patent: September 4, 2012Assignee: Sharp Kabushiki KaishaInventor: Masahiro Arai
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Patent number: 8237180Abstract: A light emitting element includes a semiconductor laminated structure including a first semiconductor layer of first conductivity type, a second semiconductor layer of second conductivity type different from the first conductivity type, and an active layer sandwiched between the first semiconductor layer and the second semiconductor layer, a surface electrode including a center electrode disposed on one surface of the semiconductor laminated structure and a thin wire electrode extending from a periphery of the center electrode, and a contact part disposed on a part of another surface of the semiconductor laminated structure extruding a part located directly below the surface electrode, in parallel along the thin wire electrode, and including a plurality of first regions forming the shortest current pathway between the thin wire electrode and a second region allowing the plural first regions to be connected.Type: GrantFiled: January 20, 2010Date of Patent: August 7, 2012Assignee: Hitachi Cable, Ltd.Inventors: Kazuyuki Iizuka, Masahiro Arai
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Patent number: 8231953Abstract: A transparent plastic container which is transparent, allows good design and can be used for an anticounterfeit system that determines authenticity by visual check with the use of polarization property. A transparent plastic sheet of a polystyrene-based resin having a total light transmission of 85% or higher and a haze of 7% or less is subjected to vacuum, pneumatic or vacuum/pneumatic forming at a sheet temperature ranging from a glass transition temperature plus 50 degrees C. to a glass transition temperature plus 130 degrees C., thereby obtaining a transparent plastic container having a planar portion with a strain amount of 150 nm or less.Type: GrantFiled: July 11, 2007Date of Patent: July 31, 2012Assignees: NHK Spring Co., Ltd., RP Topla LimitedInventors: Itsuo Takeuchi, Tokio Sakauchi, Mutsumi Sasaki, Tomoyoshi Sakamoto, Masahiro Arai, Rie Maejima
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Publication number: 20120191319Abstract: An internal combustion engine boost pressure diagnostic apparatus includes a boost pressure sensor, a throttle valve opening degree sensor, a bypass valve opening degree sensor and a control unit. The boost pressure sensor detects a pressure between a forced induction device and a throttle valve. The throttle valve opening degree sensor detects a throttle valve opening degree of the throttle valve. The bypass valve opening degree sensor detects a valve opening degree of a bypass valve. The control unit determines that the pressure between the forced induction device and the throttle valve is abnormal upon the boost pressure sensor detecting the pressure being equal to or larger than a prescribed value, the throttle valve opening degree sensor detecting the throttle valve opening degree being in a prescribed opening degree region, and the bypass valve opening degree sensor detecting the bypass valve opening degree being in a prescribed opening degree region.Type: ApplicationFiled: January 9, 2012Publication date: July 26, 2012Applicant: NISSAN MOTOR CO., LTD.Inventors: Mitsuhiko Kutoba, Masahiro Arai
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Patent number: 8209595Abstract: The present invention provides means for effectively reducing the amount of data by means of de-duplication in a disk array apparatus having a data guarantee code. A control means for the disk array apparatus that adds a data guarantee code to each logical data block and checks the data guarantee code when reading data has a de-duplication performing function and control means for: generating LA substitution information for a function checking the data guarantee code or read data location address substitution information when performing the de-duplication and storing data; performing the de-duplication using the above-mentioned information when reading data; and thereby avoiding false diagnosis of the data guarantee code check.Type: GrantFiled: September 23, 2011Date of Patent: June 26, 2012Assignee: Hitachi, Ltd.Inventors: Masahiro Arai, Kentaro Shimada, Shuji Nakamura
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Patent number: 8186841Abstract: A fluorescent tube is prevented from being wrongly attached and broken when being attached, and luminance nonuniformity of backlight due to luminance difference generated in a tube axis direction of the fluorescent tube is reduced. A backlight device 2 is provided with a plurality of fluorescent tubes 21 having electrodes 211 at both ends; a bundling member 213 for bundling wirings 212 pulled out from the electrode 211 on one side of two or more of the fluorescent tubes 21; and a conducting means 31 for achieving conduction between the electrodes of the two fluorescent tubes among the fluorescent tubes 21 by being connected with the bundling member 213. The conducting means 31 permits a current to be carried between the electrodes of the two fluorescent tubes 21, which are bundled by the one bundling member 213, and the conducting means are arranged on inverter circuit substrate 28, respectively, not to be adjacent to each other.Type: GrantFiled: June 28, 2007Date of Patent: May 29, 2012Assignee: Sharp Kabushiki KaishaInventors: Masahiro Arai, Kohei Nanbu, Masaki Shimizu
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Patent number: 8165784Abstract: In a variable valve unit provided with a variable valve mechanism that varies opening characteristics of an engine valve by rotary motion of a control shaft, an actuator that generates a rotary motion of the control shaft, a stopper restricting the rotary motion of the control shaft, and an angle sensor capable of outputting signals corresponding to angle positions of the control shaft, when the signal of the angle sensor at an angle position where the rotation of the control shaft is restricted by the stopper are learned, the actuator is controlled such that the control shaft is pressed against the stopper, after which drive torque of the actuator is reduced and with the drive torque reduced, signals of the then-angle sensor are stored.Type: GrantFiled: December 20, 2007Date of Patent: April 24, 2012Assignee: Hitachi, Ltd.Inventors: Naoki Okamoto, Masahiro Arai, Hatsuo Nagaishi, Yuko Nagaishi, legal representative, Takahiro Yoshino
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Patent number: 8120046Abstract: A light-emitting element includes a semiconductor laminated structure including a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type different from the first conductivity type and an active layer sandwiched by the first and second semiconductor layers, a first electrode on one surface side of the semiconductor laminated structure, a conductive reflective layer on an other surface side of the semiconductor laminated structure for reflecting light emitted from the active layer, a contact portion partially formed between the semiconductor laminated structure and the conductive reflective layer and being in ohmic contact with the semiconductor laminated structure, and a second electrode on a part of a surface of the conductive reflective layer on the semiconductor laminated structure without contacting the semiconductor laminated structure for feeding current to the contact portion.Type: GrantFiled: September 25, 2009Date of Patent: February 21, 2012Assignee: Hitachi Cable, Ltd.Inventors: Kazuyuki Iizuka, Masahiro Arai
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Patent number: 8103902Abstract: To provide a storage apparatus in which a plurality of drives in a unit are separately treated and the unit can be easily exchanged for another unit even when RAID groups are freely composed. The storage apparatus includes a plurality of drive cases in each of which a plurality of units are detachably mounted, each of the units including a plurality of drives that are detachably, and a controller case in which a disk control section is provided, wherein the disk control section comprises a RAID group creation section for creating a RAID group using the plurality of disks and an exchange indicating section for giving a notice that a unit is ready to exchange after rebuilding or copying of data in disks included in the unit at the time of exchange of the unit.Type: GrantFiled: September 16, 2008Date of Patent: January 24, 2012Assignee: Hitachi, Ltd.Inventors: Masahiro Arai, Ikuya Yagisawa, Yoichi Mizuno, Naoto Matsunami
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Publication number: 20120017054Abstract: The present invention provides means for effectively reducing the amount of data by means of de-duplication in a disk array apparatus having a data guarantee code. A control means for the disk array apparatus that adds a data guarantee code to each logical data block and checks the data guarantee code when reading data has a de-duplication performing function and control means for: generating LA substitution information for a function checking the data guarantee code or read data location address substitution information when performing the de-duplication and storing data; performing the de-duplication using the above-mentioned information when reading data; and thereby avoiding false diagnosis of the data guarantee code check.Type: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Applicant: Hitachi, Ltd.Inventors: Masahiro Arai, Kentaro Shimada, Shuji Nakamura
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Publication number: 20120014093Abstract: A backlight chassis 11 in which a lamp clip 21 that grips a fluorescent tube 41 is attached to a hole HL, includes an annular groove portion 12 that surrounds the hole HL.Type: ApplicationFiled: October 29, 2009Publication date: January 19, 2012Applicant: SHARP KABUSHIKI KAISHAInventor: Masahiro Arai
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Publication number: 20110298845Abstract: The object of the invention is to prevent a large amount of unnecessary images from being displayed on an image on a liquid crystal display panel, due to a signal value of a pulse width modulation signal (PWM) which exceeds the minimum signal value of a vertical synchronization signal when the vertical synchronization signal (VS) interferes with the pulse width modulation signal (PWM) within a period of one frame. A liquid crystal display panel controller makes an intermediate signal value (M1) of the vertical synchronization signal (VS) higher than the maximum signal value (H2) of the pulse width modulation signal (PWM) within at least a part of the period of one frame for the vertical synchronization signal.Type: ApplicationFiled: October 29, 2009Publication date: December 8, 2011Applicant: SHARP KABUSHIKI KAISHAInventor: Masahiro Arai
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Patent number: 8071992Abstract: A semiconductor light-emitting device includes a support structure, and a light-emitting structure. The support structure includes a support substrate, and a support substrate side bonding layer disposed on one surface of the support substrate. The light-emitting structure includes a light-emitting structure side bonding layer bonded to the support substrate side bonding layer, a reflection region disposed on the support substrate side bonding layer opposite the support substrate, and a semiconductor multilayer structure including a light-emitting layer disposed on the reflection region opposite the light-emitting structure side bonding layer for emitting a light with a predetermined wavelength, and a light-extraction surface disposed on the light-emitting layer opposite the reflection region for reflecting diffusely the light.Type: GrantFiled: August 26, 2008Date of Patent: December 6, 2011Assignee: Hitachi Cable, Ltd.Inventors: Nobuaki Kitano, Masahiro Arai, Kazuyuki Iizuka
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Publication number: 20110296129Abstract: A data transfer device that confirms completion of writing into a memory on transferring data to the memory via a bus through which a response indicating completion of data writing in the memory is not sent back includes an inter-memory data transfer control unit performing data transfer between the memories. When the inter-memory data transfer control unit detects switching of a write destination memory from a first memory to a second memory, in order to confirm that writing into the first memory is completed, the inter-memory data transfer control unit performs confirmation of write completion as to the first memory by a procedure different from writing into the memory.Type: ApplicationFiled: June 1, 2010Publication date: December 1, 2011Applicant: HITACHI, LTD.Inventors: Masahiro Arai, Hiroshi Hirayama, Masanori Takada, Hiroshi Kanayama, Hideaki Fukuda