Patents by Inventor Masaaki Tamura
Masaaki Tamura 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: 10509572Abstract: A storage device includes a non-volatile storage, and a controller configured to carry out, in parallel, operations in response to a plurality of commands received from a host and queued in a command queue. When the controller detects an error in a first operation that is being carried out in response to a first command while the controller is in parallel carrying out a second operation in response to a second command, the controller continues to carry out the second operation until a predetermined condition is met while carrying out the second operation and, at that time when the predetermined condition is met, transmits an error event notification to the host.Type: GrantFiled: March 6, 2017Date of Patent: December 17, 2019Assignee: Toshiba Memory CorporationInventors: Yutaka Sugimori, Takamasa Hirata, Mitsuhiko Sugiyama, Masaaki Tamura
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Publication number: 20190087125Abstract: A memory system includes a non-volatile memory device and a memory controller. The memory controller includes a first counting circuit configured to count a number of times reading is performed on a first unit of data, a second counting circuit configured to count a number of times reading is performed on a second unit of data, which has a size smaller than that of the first unit of data and is a part of the first unit of data, when the number of times reading has been performed on the first unit of data exceeds a first threshold value, and a cache control circuit configured to cache the second unit of data in response to a read request for the second unit of data, when the number of times reading has been performed on the second unit of data exceeds a second threshold value.Type: ApplicationFiled: March 1, 2018Publication date: March 21, 2019Inventors: Mariko MATSUMOTO, Masaaki TAMURA, Takamasa HIRATA
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Publication number: 20170262205Abstract: A storage device includes a non-volatile storage, and a controller configured to carry out, in parallel, operations in response to a plurality of commands received from a host and queued in a command queue. When the controller detects an error in a first operation that is being carried out in response to a first command while the controller is in parallel carrying out a second operation in response to a second command, the controller continues to carry out the second operation until a predetermined condition is met while carrying out the second operation and, at that time when the predetermined condition is met, transmits an error event notification to the host.Type: ApplicationFiled: March 6, 2017Publication date: September 14, 2017Inventors: Yutaka SUGIMORI, Takamasa HIRATA, Mitsuhiko SUGIYAMA, Masaaki TAMURA
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Publication number: 20170168725Abstract: A memory system includes a nonvolatile memory including first and second regions for storing firmware and a controller configured to access the nonvolatile memory based on a command from a host device. When the controller receives new firmware along with an update command and old firmware is stored in the first region, the controller stores the new firmware in the second region. When execution of firmware is triggered by an event specified by the update command after the new firmware has been stored, the controller executes the new firmware. When execution of firmware is triggered by an event that is not specified by the update command after the new firmware has been stored, the controller executes the old firmware.Type: ApplicationFiled: April 26, 2016Publication date: June 15, 2017Inventors: Masaaki TAMURA, Masami AIHARA, Tetsuji HARADA
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Publication number: 20130261240Abstract: Provided is a polyurethane resin powder composition for slush molding from which an outer skin for an instrument panel can be produced, the outer skin not interfering with deployment of an airbag. More specifically, provided is a polyurethane resin powder composition (D) for slush molding comprising perfectly spherical thermoplastic polyurethane resin particles (A) obtained by reacting a polyester diol component (J) and a diisocyanate component (F), a plasticizer (B), and a vinyl-type copolymer fine particles (C) having a crosslinked structure, wherein the polyester diol component (J) comprises a polyester diol (J1) comprising an aromatic dicarboxylic acid (E) and ethylene glycol as essential constituent units, a ratio of volume average particle sizes of (A) and (C), (A):(C), is 200:1 to 2000:1, and an extent of surface coverage of a surface of (A) with (C) {Equation (1)} is 20 to 80%.Type: ApplicationFiled: March 11, 2013Publication date: October 3, 2013Applicants: CALSONIC KANSEI CORPORATION, SANYO CHEMICAL INDUSTRIES, LTD.Inventors: Shu Yasuhara, Yasuhiro Tsudo, Koichi Saito, Masaaki Namiki, Naohito Jinnai, Shigeji Ichikawa, Masaaki Tamura
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Publication number: 20130252096Abstract: A nonaqueous electrolyte rechargeable battery includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode includes a positive-electrode active material that occludes and discharges an alkali metal ion. The negative electrode includes a negative-electrode active material that occludes and discharges an alkali metal ion. At least one of the positive electrode and the negative electrode contains a conductive polymer. The conductive polymer has a fiber-form or a three-dimensional structure provided by the fiber-form as a base, the fiber-form having a fiber diameter of equal to or less than 100 nm and an aspect ratio of equal to or greater than 10.Type: ApplicationFiled: March 15, 2013Publication date: September 26, 2013Applicants: JAPAN CARLIT CO., LTD., DENSO CORPORATIONInventors: Ryuta Kobayakawa, Kyohei Usami, Shigeki Komine, Masaaki Tamura, Tomohiko Abe, Makoto Kodaira
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Publication number: 20130252102Abstract: A nonaqueous electrolyte rechargeable battery includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode includes a positive-electrode active material that occludes and discharges an alkali metal ion. The negative electrode includes a negative-electrode active material that occludes and discharges an alkali metal ion. At least one of the positive electrode and the negative electrode contains a conductive polymer that binds the active material and provides oxidation resistance.Type: ApplicationFiled: March 15, 2013Publication date: September 26, 2013Applicants: JAPAN CARLIT CO., LTD., DENSO CORPORATIONInventors: Ryuta Kobayakawa, Kyohei Usami, Shigeki Komine, Yuuki Tachibana, Masaaki Tamura, Tomohiko Abe, Makoto Kodaira
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Patent number: 8300308Abstract: An eyepiece base unit and a microscope with which a phase contrast observation function can be easily added to the microscope. The eyepiece base unit is removably attached to a main unit of the microscope, and includes, in a state of being attached to the microscope, a pupil conjugate plane, which is a plane conjugate with an image side focal plane of an objective lens in an observation optical system of the microscope. By rotating a turret around a central axis, phase plates installed in the turret can be inserted into the pupil conjugate plane.Type: GrantFiled: April 15, 2010Date of Patent: October 30, 2012Assignee: Nikon CorporationInventor: Masaaki Tamura
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Publication number: 20120251831Abstract: An object of the present invention is to provide a near infrared absorbent dye capable of providing a near infrared shielding filter with excellent transparency as well as high heat resistance and hygrothermal resistance. The near infrared absorbent dye is characterized in that it is made of the amorphous form of diimmonium salt represented by formula (1).Type: ApplicationFiled: December 16, 2010Publication date: October 4, 2012Applicant: JAPAN CARLIT CO., LTDInventors: Akinori Okayasu, Masaaki Tamura
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Publication number: 20120215969Abstract: According to one embodiment, a storage device includes: a backup unit configured to perform backup at the time of a power shutoff; a storage module configured to store information; a cache memory configured to perform caching of the storage module; and a controller configured to adjust a size of a cache to the cache memory according to exhaustion of the backup unit.Type: ApplicationFiled: February 22, 2012Publication date: August 23, 2012Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masaaki Tamura, Masakazu Tsuruoka
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Patent number: 8212141Abstract: There is provided a high-sensitivity organic semiconductor radiation/light sensor and a radiation/light detector which can detect rays in real time. In the high-sensitivity organic semiconductor radiation/light sensor, a signal amplification wire 2 is embedded in an organic semiconductor 1. Carriers created by passage of radiation or light are avalanche-amplified by a high electric field generated near the signal amplification wire 2 by means of applying a high voltage to the signal amplification wire 2, thus dramatically improving detection efficiency of rays. Hence, even rays exhibiting low energy loss capability can be detected in real time with high sensitivity.Type: GrantFiled: October 20, 2006Date of Patent: July 3, 2012Assignees: Niigata University, Japan Carlit Co., Ltd.Inventors: Hitoshi Miyata, Yoshimasa Fujigaki, Yoji Yamaguchi, Yoshinori Muto, Masaaki Tamura
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Publication number: 20110315939Abstract: A near infrared absorbent dye is provided, having excellent heat resistance and excellent moisture resistance, as is a near infrared shielding filter using the dye. The near infrared absorbent dye contains an association form of a diimmonium salt compound represented by formula (1): wherein R1 to R8 are the same or different and each represents an organic group, and X? represents an anion.Type: ApplicationFiled: February 18, 2010Publication date: December 29, 2011Applicant: Japan Carlit Co., Ltd.Inventors: Akinori Okayasu, Susumu Yamanobe, Masaaki Tamura, Yoji Yamaguchi
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Patent number: 7818556Abstract: Firmware FW1 and FW2 is separately stored in a non-volatile memory, in which a boot code for start-up and a restoration code are stored, and a first magnetic disk. A copy of the firmware FW1 stored in the non-volatile memory is stored in the first magnetic disk, and a copy of the entire firmware FW1 and FW2 stored in the first disk medium is stored in the second magnetic disk. When an error occurs during firmware update, upon next power-on, whether the volatile memory, the first magnetic disk, and the second magnetic disk are normal or abnormal is determined, and valid firmware is read and allocated to the volatile memory so as to perform start-up by a start-up mode corresponding to the determination contents.Type: GrantFiled: July 25, 2007Date of Patent: October 19, 2010Assignee: Toshiba Storage Device CorporationInventors: Hirotaka Iima, Hiroshi Tsurumi, Masataka Shitara, Katsushi Ohta, Masaaki Tamura, Yasuyuki Nagashima
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Publication number: 20100195199Abstract: The present invention relates to an eyepiece base unit and a microscope with which a phase contrast observation function can be easily added to the microscope. The eyepiece base unit 12 is removably attached to a main unit of the microscope, and includes, in a state of being attached to the microscope, a pupil conjugate plane, which is a plane conjugate with an image side focal plane of an objective lens in an observation optical system of the microscope. By rotating a turret 32 around a central axis 67, phase plates 64a and 64c installed in the turret 32 can be inserted into the pupil conjugate plane. The present invention can be applied to a phase contrast microscope, for example.Type: ApplicationFiled: April 15, 2010Publication date: August 5, 2010Inventor: Masaaki TAMURA
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Publication number: 20100005257Abstract: A storage device includes a first storage unit that stores data read from a recording medium based on an instruction received from a processing device, and transmitting the data stored in the first storage unit to the processing device. The storage device also includes a second storage unit that stores the instruction received from the processing device; a counter that counts the number of pieces of data stored in the first storage unit; and a control unit that transmits the data stored in the first storage unit to the processing device based on a count value of the counter and, when the data read upon the instruction is stored in the first storage unit, writes identification information indicating that storing data has been completed in the second storage unit and, based on the identification information, transmits the data stored in the first storage unit to the processing device.Type: ApplicationFiled: June 8, 2009Publication date: January 7, 2010Applicant: FUJITSU LIMITEDInventors: Masaaki Tamura, Gen Ohshima
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Patent number: 7524619Abstract: A coloring matter absorbing a near-infrared ray which comprises a diimonium salt containing a sulfonimide as an anion moiety, represented by the general formula (1): wherein R may be the same or different and represents a moiety selected from the group consisting of an alkyl group, a halogenated alkyl group, a cyanoalkyl group, an aryl group, a hydroxyl group, a phenyl group, and a phenylalkylene group, and R1 and R2 may be the same or different and each represent a fluoroalkyl group, or together form a fluoroalkylene group. The coloring matter absorbing a near-infrared ray is excellent in the resistance to heat and moisture, and thus exhibits an ability of absorbing a near-infrared ray not lowering for a long period of time.Type: GrantFiled: November 18, 2003Date of Patent: April 28, 2009Assignee: Japan Carlit Co., Ltd.Inventors: Susumu Yamanobe, Masaaki Tamura, Yoji Yamaguchi, Hideo Yamamoto
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Publication number: 20090050815Abstract: There is provided a high-sensitivity organic semiconductor radiation/light sensor and a radiation/light detector which can detect rays in real time. In the high-sensitivity organic semiconductor radiation/light sensor, a signal amplification wire 2 is embedded in an organic semiconductor 1. Carriers created by passage of radiation or light are avalanche-amplified by a high electric field generated near the signal amplification wire 2 by means of applying a high voltage to the signal amplification wire 2, thus dramatically improving detection efficiency of rays. Hence, even rays exhibiting low energy loss capability can be detected in real time with high sensitivity.Type: ApplicationFiled: October 20, 2006Publication date: February 26, 2009Inventors: Hitoshi Miyata, Yoshimasa Fujigaki, Yoji Yamaguchi, Yoshinori Muto, Masaaki Tamura
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Publication number: 20080156693Abstract: To provide a process of hydrocracking heavy oil capable of obtaining cracked light oil with higher yields and/or milder reaction conditions than the conventionally proposed hydrocracking process in a suspended bed method using an iron-based catalyst when hydrocracking heavy oil containing heavy metal components produced in a refining process of crude oil into lighter oil. There are provided (1) a process of hydrocracking heavy oil containing heavy metal components produced in a refining process of crude oil, comprising a vacuum distillation step to obtain the heavy oil as distillation residue by vacuum distillation; and a reaction step to hydrocrack the heavy oil in the presence of an iron-based catalyst in a suspended bed reactor, wherein the distillation is conducted at 350° C. or less in the vacuum distillation step, (2) in the preceding process, reaction conditions in the reaction step are a reaction pressure of 60-160 kg/cm2; a reaction temperature of 430-455° C.; and a reaction time of 30-180 minutes.Type: ApplicationFiled: December 26, 2007Publication date: July 3, 2008Applicants: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.), Petroleo Brasileiro S.A. -PetrobrasInventors: Toshiaki OKUI, Masaaki Tamura, Kazuyuki Eikawa, Wladmir Ferraz de Souza
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Publication number: 20080052506Abstract: Firmware FW1 and FW2 is separately stored in a non-volatile memory, in which a boot code for start-up and a restoration code are stored, and a first magnetic disk. A copy of the firmware FW1 stored in the non-volatile memory is stored in the first magnetic disk, and a copy of the entire firmware FW1 and FW2 stored in the first disk medium is stored in the second magnetic disk. When an error occurs during firmware update, upon next power-on, whether the volatile memory, the first magnetic disk, and the second magnetic disk are normal or abnormal is determined, and valid firmware is read and allocated to the volatile memory so as to perform start-up by a start-up mode corresponding to the determination contents.Type: ApplicationFiled: July 25, 2007Publication date: February 28, 2008Inventors: Hirotaka Iima, Hiroshi Tsurumi, Masataka Shitara, Katsushi Ohta, Masaaki Tamura, Yasuyuki Nagashima
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Publication number: 20080040818Abstract: A storage apparatus divides and stores firmware which is drive control software to record and reproduce data in a disk medium into a non-volatile memory and a disk medium, and at the time of activating the apparatus, stores and executes firmware read from the non-volatile memory and the disk medium into a volatile memory. A renewal request processing unit, when received a renewal request of the firmware from a host, advises the host of the renewal completion at a point of time when new firmware transferred from the host is received and stored in the buffer memory. The background renewal unit, after the advice of the renewal completion, writes and renews the new firmware into the non-volatile memory and the disk medium as a background processing using the processing idle time of a command issued by the host.Type: ApplicationFiled: December 8, 2006Publication date: February 14, 2008Inventors: Hirotaka Iima, Hiroshi Tsurumi, Masaaki Tamura, Masataka Shitara