Patents by Inventor Akira Yamamoto
Akira Yamamoto 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: 10733092Abstract: A storage system monitors the first access frequency of occurrence which is the access frequency of occurrence from a host device during a first period, and the second access frequency of occurrence which is the access frequency of occurrence from a host device during a second period shorter than the first period. Along with performing data relocation among the tiers (levels) in the first period cycle based on the first access frequency of occurrence, the storage system performs a decision whether or not to perform a second relocation based on the first access frequency of occurrence and the second access frequency of occurrence, synchronously with access from a host device. Here the threshold value utilized in a decision on whether or not to perform the first relocation is different from the threshold value utilized in a decision on whether or not to perform the second relocation.Type: GrantFiled: November 8, 2017Date of Patent: August 4, 2020Assignee: HITACHI, LTD.Inventors: Hiroaki Akutsu, Akira Yamamoto, Shigeo Homma, Masanobu Yamamoto, Yoshinori Ohira
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Patent number: 10729392Abstract: An X-ray detector according to one embodiment includes X-ray detector modules, and a frame. Each X-ray detector module has a detection surface on which detection elements configured to detect X-rays are arrayed, and a supporter configured to support the detection elements. The frame fixes positions of the X-ray detector modules in such a manner that the detection surfaces of the X-ray detector modules are aligned along a first direction. The frame is provided with a pin protruding toward the supporter, at a position to which the supporter is fixed. The supporter is provided with a hole through which and into which the pin is inserted and fitted, at a position facing the frame. A movement of the supporter in the first direction is restricted by fitting the pin provided to the frame into the hole provided to the supporter, when the supporter is attached to the frame.Type: GrantFiled: June 28, 2017Date of Patent: August 4, 2020Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Kuniaki Yamamoto, Ryuichi Teramoto, Akira Nishijima, Takashi Kanemaru, Minoru Horinouchi
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Publication number: 20200244369Abstract: An encoding device includes an encoding unit, DA converters, light sources, intensity modulators, and wavelength multiplexers. The encoding unit adds (NM/2) to an encoded signal having a negative minimum value in a range of the encoded signal among encoded signals of N channels of (NM+1) values obtained by calculating an inner product of a Hadamard matrix of N rows and N columns and a matrix having elements of N intensity signals of (M+1) values. The DA converters of the channels convert the encoded signals of the channels from digital signals into electrical analog signals. The light sources output light of wavelengths for use in the channels. The light intensity modulators of the channels intensity-modulate the light output from the light sources with the encoded signals converted into the electrical analog signals by the DA converters. The wavelength multiplexer outputs a wavelength-multiplexed signal obtained by wavelength-multiplexing the light intensity-modulated by the light intensity modulators.Type: ApplicationFiled: April 7, 2020Publication date: July 30, 2020Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shuto YAMAMOTO, Akira MASUDA, Yoshiaki SONE, Mitsunori FUKUTOKU
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Publication number: 20200237669Abstract: The present invention relates to a compound having a macromolecular carrier having a plurality of terminal groups, wherein the carbonyl group of serine is linked by a peptide bond or an ester bond directly or via a linker to the terminal groups, a carrier for drug delivery composed of the compound, and a medicament for preventing or treating renal diseases, containing the carrier for drug delivery and a drug bonded to the carrier directly or via a linker or encapsulated therein. According to the present invention, a carrier for drug delivery that is selectively accumulated in kidney in vivo can be provided.Type: ApplicationFiled: July 6, 2018Publication date: July 30, 2020Inventors: Hidemasa Katsumi, Akira Yamamoto
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Patent number: 10723840Abstract: Provided is a polyphenylene ether resin composition having excellent heat aging resistance and fluidity. A polyphenylene ether includes at least one structural unit selected from chemical formulae (1), (2), and (3).Type: GrantFiled: October 3, 2016Date of Patent: July 28, 2020Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Chihiro Orimo, Toru Yamaguchi, Mihoko Yamamoto, Akira Mitsui
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Patent number: 10725865Abstract: A storage unit includes a plurality of storage devices that form a RAID group, that are coupled to the same bus, and that communicate with each other. Each of the plurality of storage devices includes a device controller and a storage medium. The plurality of storage devices store each of data and parities generated on the basis of the data, the data and the parities being included in RAID stripes. A first device controller of a first storage device included in the RAID group transmits, to the plurality of storage devices included in the RAID group other than the first storage device, an instruction to transfer the data and/or the parities included in the RAID stripes and restores the data or the parity corresponding to the first storage device of the RAID stripes on the basis of the transferred data and the transferred parities.Type: GrantFiled: February 25, 2015Date of Patent: July 28, 2020Assignee: HITACHI LTD.Inventors: Mitsuhiro Okada, Akifumi Suzuki, Satoshi Morishita, Akira Yamamoto
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Patent number: 10717273Abstract: A liquid ejection head includes an ejection orifice through which a liquid is ejected, a first liquid flow path which is in communication with the ejection orifice and through which the liquid flows, a second liquid flow path which is in communication with the ejection orifice on the opposite side of the first liquid flow path with respect to the ejection orifice 12 and through which the liquid flows, a first electrode positioned in the first liquid flow path 13, and a second electrode which is positioned in the second liquid flow path and generates an electro-osmotic flow in the liquid together with the first electrode.Type: GrantFiled: September 25, 2018Date of Patent: July 21, 2020Assignee: Canon Kabushiki KaishaInventors: Yoshiyuki Nakagawa, Kazuhiro Yamada, Noriyasu Nagai, Takuro Yamazaki, Toru Nakakubo, Akira Yamamoto, Masafumi Morisue, Ryo Kasai
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Patent number: 10718888Abstract: Provided is a laminate including a first polarizer, a first patterned optical anisotropic layer, a second patterned optical anisotropic layer, and a second polarizer in this order and an optically anisotropic layer disposed between the second polarizer and the second patterned optical anisotropic layer, in which an angle formed between an absorption axis of the first polarizer and an absorption axis of the second polarizer is 90°±5°; each of the first patterned optical anisotropic layer and the second patterned optical anisotropic layer has a plurality of phase difference regions having different slow axis directions in a plane of the first patterned optical anisotropic layer or the second patterned optical anisotropic layer; a white display state and a black display state are switched with each other; none of the slow axis directions of first phase difference regions and the slow axis directions of second phase difference regions are parallel or orthogonal to the absorption axes and transmission axes of theType: GrantFiled: January 30, 2018Date of Patent: July 21, 2020Assignee: FUJIFILM CorporationInventors: Yujiro Yanai, Akira Yamamoto
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Publication number: 20200216598Abstract: The present invention is to provide a process for producing an oxymethylene copolymer, in which deteriorate due to oxidation hardly occurs, an amount of formaldehyde generated from the product when stored for a long time under environment of high temperature and high humidity is reduced, and occurrence of mold deposit during molding is small. A process for producing an oxymethylene copolymer includes Step 1 of polymerizing polymer raw materials containing trioxane and a comonomer in the presence of a specific amount of an acid catalyst, Step 2 of adding a hydroxylamine compound represented by the following general formula (1): to a product obtained in the Step 1 in an amount of 1 to 20-fold mol based on an amount of the acid catalyst and mixing these, and Step 3 of further melting and kneading a mixture of the product and the hydroxylamine compound obtained in the Step 2.Type: ApplicationFiled: March 13, 2017Publication date: July 9, 2020Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., THAI POLYACETAL CO., LTD.Inventors: Yuuta YAMAMOTO, Daisuke SUNAGA, Akira ITO, Wandee THUAMTHONG, Yupin PATTAMAMONGKOLCHAI
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Patent number: 10703105Abstract: A liquid ejection head is provided with an ejection orifice array having multiple ejection orifices in order to eject a liquid; multiple energy-generating elements for generating energy in order to eject the liquid; a substrate provided with the energy-generating elements; a through-port array having multiple through-ports penetrating the substrate; multiple linear liquid flow paths positioned between the through-port array and the ejection orifice array and connected to respective ejection orifices of the ejection orifice array and respective through-ports of the through-port array; and first and second electrodes arranged in each of the multiple liquid flow paths for generating an electroosmotic flow in the liquid.Type: GrantFiled: September 25, 2018Date of Patent: July 7, 2020Assignee: Canon Kabushiki KaishaInventors: Yoshiyuki Nakagawa, Kazuhiro Yamada, Noriyasu Nagai, Takuro Yamazaki, Toru Nakakubo, Akira Yamamoto, Masafumi Morisue, Ryo Kasai
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Patent number: 10705520Abstract: A self-moving apparatus that provides a service by moving to a destination and includes a detection unit and a reporting unit. A reception unit receives a user instruction for causing the self-moving apparatus to move to a predetermined destination if the self-moving apparatus is in a predetermined state relating to maintenance or printing or if the self-moving apparatus is changed to be in the predetermined state. A detection unit detects a state of the self-moving apparatus. A moving unit that moves to the predetermined destination if the self-moving apparatus is in the predetermined state or if the self-moving apparatus is changed to be in the predetermined state on the basis of a detection result obtained by the detection unit.Type: GrantFiled: December 3, 2018Date of Patent: July 7, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Mariko Miyazaki, Hideki Fujimoto, Hajime Kajiyama, Naoya Ogata, Akira Ichikawa, Tetsuya Kobayashi, Kunitoshi Yamamoto
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Publication number: 20200210082Abstract: One or more storage systems are connected to one or more storage boxes comprising multiple storage devices. Multiple storage areas provided by one or more storage boxes include an allocated area, which is a storage area that is allocated to a virtual volume, and an empty area, which is a storage area that is not allocated to any logical volume. Multiple owner rights corresponding to multiple storage areas are set in one or more storage systems. A storage system having an empty area owner right changes an empty area to the allocated area by allocating the empty area. In a case where a configuration change (a relative change in the number of storage boxes with respect to the number of storage systems) is performed, a first storage system that exists after the configuration change sets, in the first storage system, either more or fewer owner rights than the owner rights, which have been allocated to the first storage system before the configuration change.Type: ApplicationFiled: March 10, 2020Publication date: July 2, 2020Applicant: Hitachi, Ltd.Inventors: Akira YAMAMOTO, Miho IMAZAKI
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Publication number: 20200210083Abstract: One or more storage systems are connected to one or more storage boxes comprising multiple storage devices. Multiple storage areas provided by one or more storage boxes include an allocated area, which is a storage area that is allocated to a virtual volume, and an empty area, which is a storage area that is not allocated to any logical volume. Multiple owner rights corresponding to multiple storage areas are set in one or more storage systems. A storage system having an empty area owner right changes an empty area to the allocated area by allocating the empty area. In a case where a configuration change (a relative change in the number of storage boxes with respect to the number of storage systems) is performed, a first storage system that exists after the configuration change sets, in the first storage system, either more or fewer owner rights than the owner rights, which have been allocated to the first storage system before the configuration change.Type: ApplicationFiled: March 10, 2020Publication date: July 2, 2020Applicant: Hitachi, Ltd.Inventors: Akira YAMAMOTO, Miho IMAZAKI
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Patent number: 10696843Abstract: Provided is a polyphenylene ether flame-retardant resin composition having excellent flame retardance and long-term flame retardance. The flame-retardant resin composition contains: (A) a resin including (A-1) a polyphenylene ether; and (B) a flame retardant. The (A-1) component has a content of 50 mass % or more when the flame-retardant resin composition minus ash content, corresponding to a residue obtained upon burning of the flame-retardant resin composition, is taken to be 100 mass %. A shaped article of 12.6 cm in length, 1.3 cm in width, and 1.6 mm in thickness formed from the flame-retardant resin composition exhibits a rate of change of chloroform-insoluble content of 15 mass % or less through aging in which the shaped article is left for 1,000 hours at 150° C. in an atmospheric air.Type: GrantFiled: October 3, 2016Date of Patent: June 30, 2020Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Chihiro Maeda, Mihoko Yamamoto, Akira Mitsui
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Patent number: 10698627Abstract: A storage system as a storage cluster recognized as one storage device with respect to a host system specifies a primary volume, to which one or more snapshot volumes are associated, as a migration source primary volume and performs migration processing of migrating at least the migration source primary volume from among the migration source primary volume and a part of the snapshot volumes from a migration source storage device (storage device including specified migration source primary volume and one or more snapshot volume) to a migration target storage device.Type: GrantFiled: August 31, 2018Date of Patent: June 30, 2020Assignee: HITACHI, LTD.Inventors: Akihiro Hara, Akira Yamamoto, Masakuni Agetsuma, Hideo Saito
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Publication number: 20200200235Abstract: There is provided a gear device including an input shaft to which power is input, an internal gear, and an external gear. The input shaft has an input shaft hollow portion that extends in an axial direction, and an internal gear portion that meshes with an input pinion to be rotationally driven. The internal gear portion is configured so that the input pinion internally meshing with the internal gear portion and the input shaft hollow portion do not overlap each other when viewed in the axial direction.Type: ApplicationFiled: October 29, 2019Publication date: June 25, 2020Inventors: Akira Yamamoto, Mitsuhiro Tamura
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Patent number: 10693349Abstract: The life estimation system is a life estimation system that estimates a life of the reduction gear including a reduction mechanism. The life estimation system includes a sensor that is to be mounted onto the reduction gear and detects information for identifying a stress generated in a specific part of the reduction gear, and an estimating unit that identifies the stress generated in the specific part based on detection information obtained by the sensor and estimates the life of the specific part based on the identified stress.Type: GrantFiled: October 29, 2018Date of Patent: June 23, 2020Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Mitsuhiro Tamura, Akira Yamamoto
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Patent number: 10693562Abstract: An encoding device includes an encoding unit, DA converters, light sources, intensity modulators, and wavelength multiplexers. The encoding unit adds (NM/2) to an encoded signal having a negative minimum value in a range of the encoded signal among encoded signals of N channels of (NM+1) values obtained by calculating an inner product of a Hadamard matrix of N rows and N columns and a matrix having elements of N intensity signals of (M+1) values. The DA converters of the channels convert the encoded signals of the channels from digital signals into electrical analog signals. The light sources output light of wavelengths for use in the channels. The light intensity modulators of the channels intensity-modulate the light output from the light sources with the encoded signals converted into the electrical analog signals by the DA converters. The wavelength multiplexer outputs a wavelength-multiplexed signal obtained by wavelength-multiplexing the light intensity-modulated by the light intensity modulators.Type: GrantFiled: October 16, 2017Date of Patent: June 23, 2020Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shuto Yamamoto, Akira Masuda, Yoshiaki Sone, Mitsunori Fukutoku
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Patent number: 10688024Abstract: A cleaning composition having good foamability and being capable of producing fine and stable foams with resilient texture, more specifically, a cleaning composition including a surfactant, methyl cellulose, hydroxypropyl methyl cellulose, and a solvent.Type: GrantFiled: October 2, 2018Date of Patent: June 23, 2020Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Atsushi Yamamoto, Shingo Niinobe, Akira Kitamura
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Publication number: 20200196432Abstract: A semiconductor apparatus includes a metal body in which a through hole is formed, a socket that covers the metal body without closing the through hole, a connection terminal connected to the metal body and exposed to an outside of the socket, a control board having a metal pattern and a circuit pattern, and a semiconductor chip having a control terminal connected to the circuit pattern via the through hole without being in contact with the metal body, the connection terminal being connected to the metal pattern.Type: ApplicationFiled: July 21, 2017Publication date: June 18, 2020Applicant: Mitsubishi Electric CorporationInventors: Yuki HATA, Akira YAMAMOTO, Shintaro ARAKI