Patents by Inventor Koji Yamasaki
Koji Yamasaki 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: 9104328Abstract: Upon receipt of an I/O request instructing storage of data in a storage device 106 from a host apparatus, a storage apparatus 100 selects a de-duplication process method to be applied to the received data, based on at least any of influence on processing performance of the storage apparatus 100 to be performed by execution of a first de-duplication process method (inline method) in which the de-duplication process is performed on the data immediately after the receipt of the I/O request, influence on the processing performance of the storage apparatus 100 to be performed by execution of a second de-duplication process method (post-process method) in which the de-duplication process is performed on the data at later timing, and the size of a temporary storage device 106b to be required for the processing of the data by the second de-duplication process method.Type: GrantFiled: October 31, 2012Date of Patent: August 11, 2015Assignees: HITACHI, LTD., HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.Inventors: Mitsuo Hayasaka, Koji Yamasaki
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Publication number: 20150212900Abstract: In a storage system for backing up data of an external apparatus, the external apparatus and a storage apparatus collaboratively perform efficient de-duplication. A storage system stores data from the external apparatus in a unit of content, and includes a backup apparatus configured to execute backup processing to create backup data of the data from the external apparatus in the unit of content; and a storage apparatus coupled to the backup apparatus in a communication-enabled manner and configured to store the backup data received from the backup apparatus. A first backup processing part of the backup apparatus determines whether or not a content is already stored in the storage apparatus by using first redundancy determination information that is information for determining whether or not each of contents of the backup data is already stored in the storage apparatus.Type: ApplicationFiled: December 5, 2012Publication date: July 30, 2015Inventors: Mitsuo Hayasaka, Koji Yamasaki
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Publication number: 20150184621Abstract: [OBJECT] To reduce size and weight of canister while improving adsorbing/desorbing performance by optimizing adsorbent that fills chamber located at air release side. [MEANS TO SOLVE] Adsorbent filling chambers 8, 9 located at air port 5 side, of a plurality of chambers 5˜8 that are arranged in series along an air flow direction in case 2, is formed by macroscopic pore whose diameter is 50 nm or greater. The adsorbent has hollow cylindrical shape whose inside thickness is 0.6 to 1.5 mm and whose outside diameter is 4 to 6 mm or hollow spherical shape whose inside thickness is 0.6 to 1.5 mm and whose diameter is 4 to 6 mm. A ratio of volume of the macroscopic pore whose diameter is less than 500 nm to total volume of the macroscopic pore whose diameter is equal to or greater than 50 nm is within a range of 30 to 70%.Type: ApplicationFiled: December 23, 2014Publication date: July 2, 2015Applicant: MAHLE FILTER SYSTEMS JAPAN CORPORATIONInventors: Yuji ARASE, Junpei Omichi, Takashi Hasumi, Koji Yamasaki
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Publication number: 20150131400Abstract: A two-shaft continuous kneading machine is disclosed wherein airtightness in a housing is assured by a simple means without using a mechanical seal. A magnetic coupling mechanism is formed between the mechanism in the housing (2) including shafts (3) of the kneading machine (1) and a carrier (5) arranged outside the housing (2). The magnetic coupling mechanism includes gear portions (3c) formed on the shafts (3), a ring gear (4) rotatably supported in the housing (2) on the outer periphery of the axial ends of both shafts (3), and a carrier (5) rotatably supported coaxially with the ring gear (4) in the outside of the housing (2). When the carrier (5) is driven, the ring gear (4) rotates because of the magnetic action between magnet portions (4b, 5b), and the shafts (3) rotates because of the meshing of the gear portions (3c, 4a). Since the inside of the housing can be sealed, airtightness can be assured.Type: ApplicationFiled: June 4, 2012Publication date: May 14, 2015Inventors: Atsushi Fujii, Koji Yamasaki, Kazunori Fukumoto
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Publication number: 20140146633Abstract: A kneader/stirrer includes two rotary shafts extending parallel to each other in the processing chamber, first and second regular triangular impellers mounted to the respective rotary shafts. The first impellers are located at the same axial positions as the respective first impellers. The impellers are fixed to the respective rotary shafts at points offset from the centers of the respective impellers in a predetermined direction by a predetermined distance such that when the two rotary shafts rotate in the same direction at the same speed, each pair of first and second impellers are eccentrically pivoted, with one apex of one of the pair of impellers kept in contact with or in close proximity to the contour of the other impeller, thereby scraping off polycondensation resin (material to be processed) adhered to the other impeller.Type: ApplicationFiled: June 4, 2012Publication date: May 29, 2014Inventors: Atsushi Fujii, Koji Yamasaki, Kazunori Fukumoto
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Publication number: 20140124385Abstract: To obtain adsorbent (10), meltable core which melts away during baking and binder are added to powdery activated carbon having microscopic pore whose size is less than 100 nm together with water and mixed together, then this mixture is molded into hollow cylindrical shape whose outside diameter is 4˜6 mm and baked. Although macroscopic pore whose side is 100 nm or more is formed by the meltable core, proportion of volume of the macroscopic pore to volume of the microscopic pore is adjusted to 65%˜150%. The adsorbent (10) has shape in cross section formed from cylindrical wall (10A) and cross-shaped radial wall (10B), and thickness of each part is within a range of 0.6˜3 mm. The adsorbent (10) of the present invention can satisfy adsorbing/desorbing performance of fuel vapor, flow resistance as a canister and strength of the adsorbent at the same time.Type: ApplicationFiled: May 29, 2012Publication date: May 8, 2014Inventors: Koji Yamasaki, Mitsunori Hitomi, Takashi Nagamine
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Publication number: 20140122818Abstract: Upon receipt of an I/O request instructing storage of data in a storage device 106 from a host apparatus, a storage apparatus 100 selects a de-duplication process method to be applied to the received data, based on at least any of influence on processing performance of the storage apparatus 100 to be performed by execution of a first de-duplication process method (inline method) in which the de-duplication process is performed on the data immediately after the receipt of the I/O request, influence on the processing performance of the storage apparatus 100 to be performed by execution of a second de-duplication process method (post-process method) in which the de-duplication process is performed on the data at later timing, and the size of a temporary storage device 106b to be required for the processing of the data by the second de-duplication process method.Type: ApplicationFiled: October 31, 2012Publication date: May 1, 2014Applicants: HITACHI COMPUTER PERIPHERALS CO., LTD., Hitachi, Ltd.Inventors: Mitsuo Hayasaka, Koji Yamasaki
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Publication number: 20130275696Abstract: Chunks that commonly occur in each content type are aggregated in a first container. To be more specific, a storage device used for content backup is configured with: (1) a memory device that provides a memory region for one or a plurality of first containers used to store first chunks that commonly occur in each content type among chunks extracted from the contents of writing targets, and for one or a plurality of second containers used to store other chunks than the first chunks; and (2) a backup unit that decides whether each of the chunks extracted from the contents of the writing targets is a first duplication chunk duplicating a chunk stored in the first container, and further decides, for only a chunk that is decided not to be the first duplication chunk, whether each of the chunks is a second duplication chunk duplicating a chunk stored in the second container, and then stores only a chunk that is decided not to be the second duplication chunk in the second container.Type: ApplicationFiled: April 13, 2012Publication date: October 17, 2013Applicants: HITACHI COMPUTER PERIPHERALS CO., LTD., HITACHI, LTD.Inventors: Mitsuo Hayasaka, Koji Yamasaki, Naomitsu Tashiro
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Publication number: 20130258826Abstract: A reproducing process of related data is efficiently performed also in a recording medium having recording surfaces at both of front and rear surfaces in a recording and reproducing system including a plurality of recording media. At the time of recording data on a data library apparatus, a recording medium selection unit selects a recording medium and recording surface on which data brought into the same group by a grouping processing unit is recorded.Type: ApplicationFiled: March 1, 2013Publication date: October 3, 2013Applicants: HITACHI CONSUMER ELECTRONICS CO., LTD., HITACHI-LG DATA STORAGE, INC.Inventors: Koji YAMASAKI, Shinichi SHIMODA, Shimpei USUI, Toshihiro KATO
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Patent number: 8443786Abstract: A fuel vapor storage canister for adsorbing fuel vapor evaporated from a fuel tank of an automotive vehicle. The fuel vapor storage canister includes a casing provided with charge and purge ports at its first end and an atmospheric port at its second end. At least first and second fuel vapor adsorbent layers are respectively located near the first and second ends of the casing. In this arrangement, the first fuel vapor adsorbent layer is larger in cross-sectional area perpendicular to flow direction of fuel vapor than the second fuel vapor adsorbent layer. The first and second fuel vapor adsorbent layers respectively include first and second granular fuel vapor adsorbents. The first granular fuel vapor adsorbent has a microporous structure, while the second granular fuel vapor adsorbent has a macroporous structure.Type: GrantFiled: December 10, 2010Date of Patent: May 21, 2013Assignee: Mahle Filter Systems Japan CorporationInventor: Koji Yamasaki
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Patent number: 8360034Abstract: A fuel vapor storage canister for adsorbing fuel vapor evaporated from a fuel tank of an automotive vehicle. The fuel vapor storage canister includes a casing provided with charge and purge ports at its first end and an atmospheric port at its second end. At least first and second fuel vapor adsorbent layers are respectively located near the first and second ends of the casing. In this arrangement, the first fuel vapor adsorbent layer is larger in cross-sectional area perpendicular to flow direction of fuel vapor than the second fuel vapor adsorbent layer. The first and second fuel vapor adsorbent layers respectively include first and second granular fuel vapor adsorbents. The first granular fuel vapor adsorbent has a microporous structure, while the second granular fuel vapor adsorbent has a macroporous structure.Type: GrantFiled: December 10, 2010Date of Patent: January 29, 2013Assignee: Mahle Filter Systems Japan CorporationInventor: Koji Yamasaki
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Patent number: 8015965Abstract: A fuel vapor storage canister for adsorbing fuel vapor evaporated from a fuel tank of an automotive vehicle. The fuel vapor storage canister includes a casing provided with charge and purge ports at its first end and an atmospheric port at its second end. At least first and second fuel vapor adsorbent layers are respectively located near the first and second ends of the casing. In this arrangement, the first fuel vapor adsorbent layer is larger in cross-sectional area perpendicular to flow direction of fuel vapor than the second fuel vapor adsorbent layer. The first and second fuel vapor adsorbent layers respectively include first and second granular fuel vapor adsorbents. The first granular fuel vapor adsorbent has a microporous structure, while the second granular fuel vapor adsorbent has a macroporous structure.Type: GrantFiled: July 10, 2008Date of Patent: September 13, 2011Assignee: Mahle Filter Systems Japan CorporationInventor: Koji Yamasaki
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Patent number: 7976644Abstract: The present invention provides a method of production of grain-oriented electrical steel sheet comprising making a slab heating temperature 1280° C. or less, annealing hot rolled sheet by (a) a process of heating it to a predetermined temperature of 1000 to 1150° C. to cause recrystallization, then annealing by a temperature lower than that of 850 to 1100° C. or by (b) decarburizing in annealing the hot rolled sheet so that a difference in amounts of carbon of the steel sheet before and after annealing the hot rolled sheet becomes 0.002 to 0.02 mass % and performing the heating in the temperature elevation process of the decarburization annealing under conditions of a heating rate of 40° C. or more, preferably 75 to 125° C./s while the temperature of the steel sheet is in a range from 550° C. to 720° C. and utilizing induction heating for rapid heating in the temperature elevation process of decarburization annealing.Type: GrantFiled: May 22, 2007Date of Patent: July 12, 2011Assignee: Nippon Steel CorporationInventors: Yoshiyuki Ushigami, Norikazu Fujii, Takeshi Kimura, Maremizu Ishibashi, Shuichi Nakamura, Koji Yamasaki
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Publication number: 20110148911Abstract: The image processing circuit 400 is provided with R RAM 418, G RAM 420, and B RAM 422. During the vertical blanking interval of a display device 122, tone correction results corresponding to all values which can be inputted as the input signal Di are stored as a lookup table (LUT) in each RAM. When an image is displayed in the display device 122, tone correction of the input signal Di is indirectly performed by referencing the LUT. Redundant computation can thereby be avoided, and power consumption can be reduced.Type: ApplicationFiled: December 14, 2010Publication date: June 23, 2011Applicant: Rohm Co., Ltd.Inventors: Koji Yamasaki, Kiyoshi Ichihara
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Publication number: 20110077151Abstract: A fuel vapor storage canister for adsorbing fuel vapor evaporated from a fuel tank of an automotive vehicle. The fuel vapor storage canister includes a casing provided with charge and purge ports at its first end and an atmospheric port at its second end. At least first and second fuel vapor adsorbent layers are respectively located near the first and second ends of the casing. In this arrangement, the first fuel vapor adsorbent layer is larger in cross-sectional area perpendicular to flow direction of fuel vapor than the second fuel vapor adsorbent layer. The first and second fuel vapor adsorbent layers respectively include first and second granular fuel vapor adsorbents. The first granular fuel vapor adsorbent has a microporous structure, while the second granular fuel vapor adsorbent has a macroporous structure.Type: ApplicationFiled: December 10, 2010Publication date: March 31, 2011Inventor: Koji Yamasaki
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Publication number: 20110077150Abstract: A fuel vapor storage canister for adsorbing fuel vapor evaporated from a fuel tank of an automotive vehicle. The fuel vapor storage canister includes a casing provided with charge and purge ports at its first end and an atmospheric port at its second end. At least first and second fuel vapor adsorbent layers are respectively located near the first and second ends of the casing. In this arrangement, the first fuel vapor adsorbent layer is larger in cross-sectional area perpendicular to flow direction of fuel vapor than the second fuel vapor adsorbent layer. The first and second fuel vapor adsorbent layers respectively include first and second granular fuel vapor adsorbents. The first granular fuel vapor adsorbent has a microporous structure, while the second granular fuel vapor adsorbent has a macroporous structure.Type: ApplicationFiled: December 10, 2010Publication date: March 31, 2011Inventor: Koji YAMASAKI
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Publication number: 20090165895Abstract: The present invention provides a method of production of grain-oriented electrical steel sheet comprising making a slab heating temperature 1280° C. or less, annealing hot rolled sheet by (a) a process of heating it to a predetermined temperature of 1000 to 1150° C. to cause recrystallization, then annealing by a temperature lower than that of 850 to 1100° C. or by (b) decarburizing in annealing the hot rolled sheet so that a difference in amounts of carbon of the steel sheet before and after annealing the hot rolled sheet becomes 0.002 to 0.02 mass % and performing the heating in the temperature elevation process of the decarburization annealing under conditions of a heating rate of 40° C. or more, preferably 75 to 125° C./s while the temperature of the steel sheet is in a range from 550° C. to 720° C. and utilizing induction heating for rapid heating in the temperature elevation process of decarburization annealing.Type: ApplicationFiled: May 22, 2007Publication date: July 2, 2009Inventors: Yoshiyuki Ushigami, Norikazu Fujii, Takeshi Kimura, Maremizu Ishibashi, Shuichi Nakamura, Koji Yamasaki
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Publication number: 20090013973Abstract: A fuel vapor storage canister for adsorbing fuel vapor evaporated from a fuel tank of an automotive vehicle. The fuel vapor storage canister includes a casing provided with charge and purge ports at its first end and an atmospheric port at its second end. At least first and second fuel vapor adsorbent layers are respectively located near the first and second ends of the casing. In this arrangement, the first fuel vapor adsorbent layer is larger in cross-sectional area perpendicular to flow direction of fuel vapor than the second fuel vapor adsorbent layer. The first and second fuel vapor adsorbent layers respectively include first and second granular fuel vapor adsorbents. The first granular fuel vapor adsorbent has a microporous structure, while the second granular fuel vapor adsorbent has a macroporous structure.Type: ApplicationFiled: July 10, 2008Publication date: January 15, 2009Inventor: Koji YAMASAKI
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Patent number: 6995628Abstract: A waveguide unit including a vertically polarized waveguide, a horizontally polarized waveguide, and a waveguide type-polarized wave converter interposed between said waveguides. The waveguide type-polarized wave converter has a slit, the shape of which being combination of two quadrate parts and a connecting part for connecting the two quadrate parts. Those polarized waveguides and polarized wave converter are integrally manufactured but can be divided into two parts.Type: GrantFiled: November 3, 2003Date of Patent: February 7, 2006Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Hideki Asao, Hirotaka Kamino, Naofumi Yoneda, Muneaki Mukuda, Koji Yamasaki
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Publication number: 20040246062Abstract: A waveguide unit including a vertically polarized waveguide, a horizontally polarized waveguide, and a waveguide type-polarized wave converter interposed between said waveguides. The waveguide type-polarized wave converter has a slit, the shape of which being combination of two quadrate parts and a connecting part for connecting the two quadrate parts. Those polarized waveguides and polarized wave converter are integrally manufactured but can be divided into two parts.Type: ApplicationFiled: November 3, 2003Publication date: December 9, 2004Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Hideki Asao, Hirotaka Kamino, Naofumi Yoneda, Muneaki Mukuda, Koji Yamasaki