Patents by Inventor Akira Nakashima
Akira Nakashima 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: 11970349Abstract: A cassette comprises a sheet housing portion that has an opening in an upper face and houses sheets, a cassette cover that can be attached and detached and covers at least a portion of the opening, a first protruding portion that is provided in one edge portion of the cassette cover and protrudes toward a bottom face of the sheet housing portion, and a second protruding portion that is provided in the other edge portion of the cassette cover and opposes the first protruding portion, wherein the sheet housing portion includes a projection-shaped portion that protrudes toward the first protruding portion and a position regulating portion that has a gap into which the second protruding portion enters, and the first protruding portion is provided with a receiving portion into which the projection-shaped portion enters.Type: GrantFiled: July 27, 2022Date of Patent: April 30, 2024Assignee: Canon Kabushiki KaishaInventors: Gakushi Tanaka, Akira Nakashima, Kazuto Ishihara, Yasuhito Tsubakimoto
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Patent number: 11952748Abstract: A hydraulic pump is driven by an engine. A hydraulic motor is driven by hydraulic fluid discharged from the hydraulic pump thereby causing a vehicle to travel. A controller controls a rotation speed of the engine and a displacement of the hydraulic pump. The controller acquires a tractive force of the vehicle. The controller changes the rotation speed of the engine to a low speed side in accordance with a reduction in the tractive force.Type: GrantFiled: October 31, 2019Date of Patent: April 9, 2024Assignee: KOMATSU LTD.Inventor: Akira Nakashima
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Patent number: 11754775Abstract: A light emitting device includes first and second light emitting elements; and a light guiding member including first and second light receiving portion corresponding to the first and second light emitting elements and configured to emit the light received by the first and second light receiving portions from a light emitting portion via a light guiding portion. The light guiding portion includes a reflecting surface forming portion between the first light receiving portion and the second light receiving portion in the first direction. The reflecting surface forming portion includes first and second reflecting surfaces. The first reflecting surface is formed by surfaces having different angles including a surface that reflects the light from the first light receiving portion to a side of the first light receiving portion.Type: GrantFiled: September 13, 2022Date of Patent: September 12, 2023Assignee: Canon Kabushiki KaishaInventors: Kazuto Ishihara, Yasuhito Tsubakimoto, Gakushi Tanaka, Akira Nakashima
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Patent number: 11719335Abstract: An HST circuit has a hydraulic pump that converts a drive force of an engine into energy of oil, and a hydraulic motor that converts the energy of the oil converted by the hydraulic pump into drive energy. Pressure sensors detect a pressure of the oil within the HST circuit. A variable charge pump replenishes the oil into the HST circuit. A controller controls a capacity of the variable charge pump based on the pressure of the oil within the HST circuit detected by the pressure sensors.Type: GrantFiled: April 2, 2020Date of Patent: August 8, 2023Assignee: KOMATSU LTD.Inventors: Akira Nakashima, Shinobu Kamikawa
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Publication number: 20230078594Abstract: A light emitting device includes first and second light emitting elements; and a light guiding member including first and second light receiving portion corresponding to the first and second light emitting elements and configured to emit the light received by the first and second light receiving portions from a light emitting portion via a light guiding portion. The light guiding portion includes a reflecting surface forming portion between the first light receiving portion and the second light receiving portion in the first direction. The reflecting surface forming portion includes first and second reflecting surfaces. The first reflecting surface is formed by surfaces having different angles including a surface that reflects the light from the first light receiving portion to a side of the first light receiving portion.Type: ApplicationFiled: September 13, 2022Publication date: March 16, 2023Inventors: Kazuto Ishihara, Yasuhito Tsubakimoto, Gakushi Tanaka, Akira Nakashima
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Publication number: 20230060034Abstract: A cassette comprises a sheet housing portion that has an opening in an upper face and houses sheets, a cassette cover that can be attached and detached and covers at least a portion of the opening, a first protruding portion that is provided in one edge portion of the cassette cover and protrudes toward a bottom face of the sheet housing portion, and a second protruding portion that is provided in the other edge portion of the cassette cover and opposes the first protruding portion, wherein the sheet housing portion includes a projection-shaped portion that protrudes toward the first protruding portion and a position regulating portion that has a gap into which the second protruding portion enters, and the first protruding portion is provided with a receiving portion into which the projection-shaped portion enters.Type: ApplicationFiled: July 27, 2022Publication date: February 23, 2023Inventors: Gakushi Tanaka, Akira Nakashima, Kazuto Ishihara, Yasuhito Tsubakimoto
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Publication number: 20220263960Abstract: A reading apparatus includes a main body that includes an original document plate and a reading portion configured to read an image from the original document, and an operation portion that is attached in the original document plate. The operation portion includes: a front face casing portion; and a rear face casing portion that is engaged with the front face casing portion at an operation surface. An upper end portion of the operation portion is as high as the original document plate or higher than the original document plate, and in an engaging portion of the front face casing portion and the rear face casing portion at the upper end portion, an upper edge of the front face casing portion has a shorter distance to the lower end portion of the operation portion than the upper edge of the rear face casing portion.Type: ApplicationFiled: February 4, 2022Publication date: August 18, 2022Inventors: Akira Nakashima, Toru Yada, Mitsuyuki Fujibayashi, Gakushi Tanaka, Yuji Kagami
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Patent number: 11384512Abstract: A load sensing valve maintains a differential pressure at a set pressure by controlling a regulator in accordance with a differential pressure between a discharge pressure of a hydraulic pump and a load pressure of hydraulic actuators. A set pressure control device controls the set pressure. A controller controls the set pressure control device to reduce the set pressure more than when the work implement is being operated, when a predetermined determination condition that includes the work implement not being operated is satisfied.Type: GrantFiled: October 31, 2019Date of Patent: July 12, 2022Assignee: KOMATSU LTD.Inventors: Akira Nakashima, Isamu Oda
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Publication number: 20220154738Abstract: An HST circuit has a hydraulic pump that converts a drive force of an engine into energy of oil, and a hydraulic motor that converts the energy of the oil converted by the hydraulic pump into drive energy. Pressure sensors detect a pressure of the oil within the HST circuit. A variable charge pump replenishes the oil into the HST circuit. A controller controls a capacity of the variable charge pump based on the pressure of the oil within the HST circuit detected by the pressure sensors.Type: ApplicationFiled: April 2, 2020Publication date: May 19, 2022Applicant: KOMATSU LTD.Inventors: Akira NAKASHIMA, Shinobu KAMIKAWA
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Publication number: 20220045574Abstract: A driving device includes an electric motor, a drive gear, a deceleration mechanism, a driven gear, and a housing. At least either one of the drive gear and the driven gear is provided as a helical gear. The deceleration mechanism includes a plurality of reduction gear shafts, a plurality of bearings, and a biasing member provided for at least any one of the bearings. The biasing member axially biases an outer ring of the at least any one of the bearings that supports at least either one of end parts of the shaft portion of a corresponding one of the reduction gear shafts, the end parts including an end part on the large-diameter gear wheel side and an end part on the small-diameter gear wheel side.Type: ApplicationFiled: July 26, 2021Publication date: February 10, 2022Applicant: JTEKT CORPORATIONInventors: Akitomo IWATA, Yoshinori SUZUKI, Keita NOMURA, Akira NAKASHIMA, Kuniko HAYASHI, Akira SATO, Yusei KONDA, Minh Phuong DAO, Yoshihide KAMIYA, Van Tinh NGUYEN
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Publication number: 20220034068Abstract: A load sensing valve maintains a differential pressure at a set pressure by controlling a regulator in accordance with a differential pressure between a discharge pressure of a hydraulic pump and a load pressure of hydraulic actuators. A set pressure control device controls the set pressure. A controller controls the set pressure control device to reduce the set pressure more than when the work implement is being operated, when a predetermined determination condition that includes the work implement not being operated is satisfied.Type: ApplicationFiled: October 31, 2019Publication date: February 3, 2022Inventors: Akira NAKASHIMA, Isamu ODA
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Publication number: 20220034069Abstract: A hydraulic pump is driven by an engine. A hydraulic motor is driven by hydraulic fluid discharged from the hydraulic pump thereby causing a vehicle to travel. A controller controls a rotation speed of the engine and a displacement of the hydraulic pump. The controller acquires a tractive force of the vehicle. The controller changes the rotation speed of the engine to a low speed side in accordance with a reduction in the tractive force.Type: ApplicationFiled: October 31, 2019Publication date: February 3, 2022Inventor: Akira NAKASHIMA
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Patent number: 10751705Abstract: Chabazite zeolites have a problem of low hydrothermal resistance. By steam treating a chabazite zeolite having a silica-alumina ratio and a crystallinity that are within certain ranges, a chabazite zeolite having a high crystallinity and a high hydrothermal resistance can be obtained.Type: GrantFiled: June 1, 2017Date of Patent: August 25, 2020Assignee: JGC CATALYSTS AND CHEMICALS LTD.Inventors: Yoko Yamaguchi, Shunji Tsuruta, Akira Nakashima
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Patent number: 10618040Abstract: An object of the present invention is to provide a chabazite zeolite which does not easily peel from a substrate such as a honeycomb body even when the substrate has been coated therewith, while exhibiting excellent durability. The present invention relates to a chabazite zeolite for substrate coating, which includes (i) to (iv) below. (i) Si and Al are contained, (ii) an SiO2/Al2O3 molar ratio is in a range of 5<SiO2/Al2O3<10, (iii) an average crystal size is in a range of 0.05 ?m<average crystal size<1 ?m, and (iv) in a spectrum measured by 27Al-NMR, a ratio (ANFA/ATotal) between an area (ATotal) of all peaks in the spectrum and an area (ANFA) of peaks assigned to Al other than tetracoordinated Al is in a range of 20%?(ANFA/ATotal)?70%.Type: GrantFiled: October 25, 2017Date of Patent: April 14, 2020Assignee: JGC CATALYSTS AND CHEMICALS LTD.Inventors: Yoko Yamaguchi, Shunji Tsuruta, Akira Nakashima
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Publication number: 20190330070Abstract: [Problem] Chabazite zeolites have a problem of low hydrothermal resistance. [Solution] By steam treating a chabazite zeolite having a silica-alumina ratio and a crystallinity that are within certain ranges, a chabazite zeolite having a high crystallinity and a high hydrothermal resistance can be obtained.Type: ApplicationFiled: June 1, 2017Publication date: October 31, 2019Applicant: JGC CATALYSTS AND CHEMICALS LTD.Inventors: Yoko YAMAGUCHI, Shunji TSURUTA, Akira NAKASHIMA
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Publication number: 20190240648Abstract: An object of the present invention is to provide a chabazite zeolite which does not easily peel from a substrate such as a honeycomb body even when the substrate has been coated therewith, while exhibiting excellent durability. The present invention relates to a chabazite zeolite for substrate coating, which includes (i) to (iv) below. (i) Si and Al are contained, (ii) an SiO2/Al2O3 molar ratio is in a range of 5<SiO2/Al2O3<10, (iii) an average crystal size is in a range of 0.05 ?m< average crystal size <1 ?m, and (iv) in a spectrum measured by 27Al-NMR, a ratio (ANFA/ATotal) between an area (ATotal) of all peaks in the spectrum and an area (ANFA) of peaks assigned to Al other than tetracoordinated Al is in a range of 20%?(ANFA/ATotal)?70%.Type: ApplicationFiled: October 25, 2017Publication date: August 8, 2019Applicant: JGC CATALYSTS AND CHEMICALS LTD.Inventors: Yoko YAMAGUCHI, Shunji TSURUTA, Akira NAKASHIMA
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Publication number: 20190206172Abstract: The present invention provides a sheet identification device and a sheet identification method capable of meeting a wider variety of requests. The sheet identification device of the present invention is configured to identify a sheet under transportation. The device includes a standard identifier and an option attachment member to which an optional identifier is attachable. The standard identifier includes a standard sensor unit including an optical line sensor and a standard controller configured to control the standard sensor unit and identify a type of the sheet based on an output from the standard sensor unit. The optional identifier includes an optional sensor unit configured to execute a different sensing operation from a sensing operation executed by the standard sensor unit and an optional controller configured to control the optional sensor unit.Type: ApplicationFiled: June 29, 2017Publication date: July 4, 2019Inventors: Hiroki OJI, Akira NAKASHIMA, Tomohiko KASUYA, Kazuhiro OHMATSU, Satoshi YOSHIDA
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Patent number: 10209303Abstract: A signal processing apparatus includes a recording unit, an operation unit, a processing unit and an abnormality detector. The recording unit records configuration data therein. The operation unit performs arithmetic and logical operations on an input signal and outputs an operation signal indicative of the result of the operations. The operation unit has a circuit configuration defined by the configuration data recorded in the recording unit. The processing unit acquires the operation signal outputted from the operation unit, produces an output signal based on the acquired operation signal and outputs the produced output signal. The abnormality detector detects an abnormality of the circuit configuration of the operation unit. Moreover, in the signal processing apparatus, the processing unit is configured to further acquire an abnormality detection result from the abnormality detector after the acquisition of the operation signal and output the output signal depending on the abnormality detection result.Type: GrantFiled: July 17, 2015Date of Patent: February 19, 2019Assignee: DENSO CORPORATIONInventors: Tetsuya Kimata, Akira Nakashima
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Patent number: 9881233Abstract: An image recognition apparatus includes a storage unit which stores a plurality of pieces of identical recognition reference data which are used as references for recognizing a specific object from an image, an image recognition unit which recognizes the specific object by alternately making a switch between the plurality of pieces of recognition reference data, on a frame basis, stored in the storage unit, for consecutive frames of the image acquired by an image acquisition unit, and a recognition determining unit which, on condition that recognition results obtained by the image recognition unit by using the plurality of pieces of recognition reference data meet a predetermined matching condition, outputs the recognition results as effective recognition results.Type: GrantFiled: September 29, 2015Date of Patent: January 30, 2018Assignee: DENSO CORPORATIONInventors: Akira Nakashima, Tetsuya Kimata
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Patent number: 9852502Abstract: An image processing apparatus includes an image processing section periodically performing image processing for a periodically captured image, a diagnosing section comparing an image processing result obtained from diagnostic image data with an expected value data which indicates a reference for a normal processing result of image processing of the diagnostic image data and determining whether the image processing result obtained from the diagnostic image data is normal, by making the image processing section perform image processing for the diagnostic image data which is directly accessible by the image processing section in parallel with image processing periodically performed by the image processing section for the captured image, and an output controlling section outputting the processing result of image processing for the captured image as valid to a control section on condition that the image processing result obtained from the diagnostic image data is determined as normal by the diagnosing section.Type: GrantFiled: October 26, 2015Date of Patent: December 26, 2017Assignee: DENSO CORPORATIONInventors: Akira Nakashima, Tetsuya Kimata