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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Publication number: 20220043265Abstract: An interframe difference processor 206 generates a difference image between frames of a sensor image, and an image processor 208 generates distance information indicating a distance to a photographic subject on the basis of calculation of a difference image and a developing pattern 1101. Thus, since a video display apparatus 101 generates the difference image between the frames of the sensor image, it is possible to realize a distance measuring apparatus capable of reducing an influence of a background and generating distance information with high accuracy.Type: ApplicationFiled: September 18, 2018Publication date: February 10, 2022Inventors: Koji YAMASAKI, Yusuke NAKAMURA
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Publication number: 20210333554Abstract: A HMD includes a sensor for detecting an orientation of a main body, a display, and a field image display unit for displaying a first image in a predetermined first display region of the display and displaying a second image related to the first image in a second display region of the display on a screen of the display. The field image display unit determines the second display region on the screen of the display according to the orientation of the main body.Type: ApplicationFiled: March 10, 2021Publication date: October 28, 2021Inventors: Chiyo OHNO, Koji YAMASAKI, Takuya NAKAMICHI, Yasuyuki MIMATSU
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Patent number: 11137600Abstract: Provided is a display device to prevent a decrease in visibility of a work object. The display device includes a display unit that displays work support information through surrounding scenery, a sensor group including at least one imaging unit that images in a visual line direction of a user, a work state determination unit that determines a work state of the user based on an output from the sensor group, and a display control unit that changes display of the work support information on the display unit corresponding to the determined work state of the user.Type: GrantFiled: January 24, 2020Date of Patent: October 5, 2021Assignee: HITACHI, LTD.Inventors: Koji Yamasaki, Chiyo Ohno, Shoji Yamamoto
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Patent number: 10992909Abstract: A video recording device includes: a camera which captures a video of a visual-field direction of a wearer; a connection part which is communicably connected to an external sensor which detects predetermined environment information; a threshold information storage part which stores a threshold indicating an abnormal state of the environment information; a determination part which outputs an abnormality determination signal by comparing detection information of the external sensor and the threshold; a control part which outputs a predetermined control signal to the camera in response to the abnormality determination signal; and a display part which displays output information from the camera and the external sensor. When the abnormality determination signal is output, the control part outputs a control signal for transferring output information from the camera to a predetermined storage part.Type: GrantFiled: December 12, 2019Date of Patent: April 27, 2021Assignee: Hitachi, Ltd.Inventors: Shoji Yamamoto, Chiyo Ohno, Koji Yamasaki
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Patent number: 10863120Abstract: An imaging device includes: a modulator configured to modulate the intensity of light, based on a real pattern; an image sensor configured to convert light passing through the modulator to electrical signals to generate a sensor image; a complex sensor image processing unit configured to generate a complex sensor image including a complex number, from an image obtained by executing predetermined positioning for the sensor image taken through the real pattern; and an image processing unit configured to restore an image, based on an operation with the complex sensor image and data of a pattern for reconstruction.Type: GrantFiled: March 5, 2019Date of Patent: December 8, 2020Assignee: HITACHI, LTD.Inventors: Chiyo Ohno, Yusuke Nakamura, Kazuyuki Tajima, Koji Yamasaki, Takeshi Shimano
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Publication number: 20200301144Abstract: Provided is a display device to prevent a decrease in visibility of a work object. The display device includes a display unit that displays work support information through surrounding scenery, a sensor group including at least one imaging unit that images in a visual line direction of a user, a work state determination unit that determines a work state of the user based on an output from the sensor group, and a display control unit that changes display of the work support information on the display unit corresponding to the determined work state of the user.Type: ApplicationFiled: January 24, 2020Publication date: September 24, 2020Applicant: HITACHI, LTD.Inventors: Koji YAMASAKI, Chiyo OHNO, Shoji YAMAMOTO
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Publication number: 20200275062Abstract: A video recording device includes: a camera which captures a video of a visual-field direction of a wearer; a connection part which is communicably connected to an external sensor which detects predetermined environment information; a threshold information storage part which stores a threshold indicating an abnormal state of the environment information; a determination part which outputs an abnormality determination signal by comparing detection information of the external sensor and the threshold; a control part which outputs a predetermined control signal to the camera in response to the abnormality determination signal; and a display part which displays output information from the camera and the external sensor. When the abnormality determination signal is output, the control part outputs a control signal for transferring output information from the camera to a predetermined storage part.Type: ApplicationFiled: December 12, 2019Publication date: August 27, 2020Inventors: Shoji YAMAMOTO, Chiyo OHNO, Koji YAMASAKI
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Publication number: 20190306443Abstract: An imaging device includes: a modulator configured to modulate the intensity of light, based on a real pattern; an image sensor configured to convert light passing through the modulator to electrical signals to generate a sensor image; a complex sensor image processing unit configured to generate a complex sensor image including a complex number, from an image obtained by executing predetermined positioning for the sensor image taken through the real pattern; and an image processing unit configured to restore an image, based on an operation with the complex sensor image and data of a pattern for reconstruction.Type: ApplicationFiled: March 5, 2019Publication date: October 3, 2019Inventors: Chiyo OHNO, Yusuke NAKAMURA, Kazuyuki TAJIMA, Koji YAMASAKI, Takeshi SHIMANO
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Patent number: 10150097Abstract: A cylindrical column-shaped honeycomb adsorbent has a plurality of cell passages extending along an axial direction of the honeycomb adsorbent. The plurality of cell passages are configured so that a pitch of adjacent cell passages is within a range of 1.5 mm˜1.8 mm, and so that a thickness of a wall between the cell passages is within a range of 0.45 mm˜0.60 mm. With this configuration, the honeycomb adsorbent exhibits BWC (Butane Working Capacity) of 6.5 g/dL or greater. By mixing fibrous meltable core melting away during baking, the honeycomb adsorbent has macropores configured to have a volume of 0.15 mL/g˜0.35 mL/g with respect to an overall weight of the honeycomb adsorbent and metal oxide particles having a proportion of weight of 150˜250% with respect to the activated carbon.Type: GrantFiled: February 8, 2017Date of Patent: December 11, 2018Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATIONInventors: Takashi Hasumi, Junpei Omichi, Koji Yamasaki
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Publication number: 20180178194Abstract: A cylindrical column-shaped honeycomb adsorbent has a plurality of cell passages extending along an axial direction of the honeycomb adsorbent. The plurality of cell passages are configured so that a pitch of adjacent cell passages is within a range of 1.5 mm˜1.8 mm, and so that a thickness of a wall between the cell passages is within a range of 0.45 mm˜0.60 mm. With this configuration, the honeycomb adsorbent exhibits BWC (Butane Working Capacity) of 6.5 g/dL or greater. By mixing fibrous meltable core melting away during baking, the honeycomb adsorbent has macropores configured to have a volume of 0.15 mL/g˜0.35 mL/g with respect to an overall weight of the honeycomb adsorbent and metal oxide particles having a proportion of weight of 150˜250% with respect to the activated carbon.Type: ApplicationFiled: February 8, 2017Publication date: June 28, 2018Applicant: MAHLE FILTER SYSTEMS JAPAN CORPORATIONInventors: Takashi HASUMI, Junpei OMICHI, Koji YAMASAKI
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Patent number: 9952936Abstract: 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: GrantFiled: December 5, 2012Date of Patent: April 24, 2018Assignee: Hitachi, Ltd.Inventors: Mitsuo Hayasaka, Koji Yamasaki
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Patent number: 9690487Abstract: 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: July 2, 2015Date of Patent: June 27, 2017Assignee: HITACHI, LTD.Inventors: Mitsuo Hayasaka, Koji Yamasaki
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Patent number: 9427890Abstract: A kneader/stirrer includes two rotary shafts extending parallel to each other in the processing chamber, and 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: GrantFiled: June 4, 2012Date of Patent: August 30, 2016Assignee: KURIMOTO, LTD.Inventors: Atsushi Fujii, Koji Yamasaki, Kazunori Fukumoto
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Patent number: 9322368Abstract: To reduce size and weight of canister while improving adsorbing/desorbing performance by optimizing adsorbent that fills chamber located at air release side. 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: GrantFiled: December 23, 2014Date of Patent: April 26, 2016Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATIONInventors: Yuji Arase, Junpei Omichi, Takashi Hasumi, Koji Yamasaki
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Patent number: 9324359Abstract: Data recording and reproduction systems, apparatus, and methods provide efficient recording of and reproduction from storage media having multiple surfaces. In particular, a grouping processing unit groups data based on several factors. The grouped data can then be efficiently stored on storage media having multiple sides to increase the efficiency of storage and retrieval of such data. For example, data belonging to the same group is not stored on two surfaces of the same storage media to avoid having to remove and reverse the direction of the storage media in order to store data on or retrieve data from the other side of the storage media.Type: GrantFiled: March 1, 2013Date of Patent: April 26, 2016Assignees: HITACHI—LG DATA STORAGE, INC., HITACHI CONSUMER ELECTRONICS CO., LTD.Inventors: Koji Yamasaki, Shinichi Shimoda, Shimpei Usui, Toshihiro Kato
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Publication number: 20150378614Abstract: 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: July 2, 2015Publication date: December 31, 2015Applicants: HITACHI, LTD., Hitachi Information & Telecommunication Engineering Ltd.Inventors: Mitsuo HAYASAKA, Koji YAMASAKI
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Patent number: 9223660Abstract: 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: GrantFiled: August 3, 2015Date of Patent: December 29, 2015Assignees: HITACHI, LTD., HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.Inventors: Mitsuo Hayasaka, Koji Yamasaki, Naomitsu Tashiro
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Publication number: 20150339199Abstract: 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: August 3, 2015Publication date: November 26, 2015Applicants: HITACHI, LTD., Hitachi Information & Telecommunication Engineering Ltd.Inventors: Mitsuo HAYASAKA, Koji YAMASAKI, Naomitsu TASHIRO
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Patent number: 9174195Abstract: 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: GrantFiled: May 29, 2012Date of Patent: November 3, 2015Assignees: MAHLE FILTER SYSTEMS JAPAN CORPORATION, KURARAY CHEMICAL CO., LTD.Inventors: Koji Yamasaki, Mitsunori Hitomi, Takashi Nagamine
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Patent number: 9128616Abstract: 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: GrantFiled: April 13, 2012Date of Patent: September 8, 2015Assignees: HITACHI, LTD., HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.Inventors: Mitsuo Hayasaka, Koji Yamasaki, Naomitsu Tashiro