Patents by Inventor Kazuya Saito
Kazuya Saito 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: 12139601Abstract: A method for improving the comparative tracking index of a thermoplastic resin, as measured in compliance with IEC60112, 3rd edition, is disclosed by blending a carbodiimide compound in the thermoplastic resin; use of a carbodiimide compound for improving the comparative tracking index of a thermoplastic resin, as measured in compliance with IEC60112, 3rd edition; and a tracking resistance improving agent for a thermoplastic resin, for improving the comparative tracking index of the thermoplastic resin, as measured in compliance with IEC60112, 3rd edition. The carbodiimide compound is preferably used at a ratio of 0.01 parts by mass or more with respect to 100 parts by mass of the thermoplastic resin.Type: GrantFiled: March 24, 2020Date of Patent: November 12, 2024Assignee: POLYPLASTICS CO., LTD.Inventors: Itsuki Saito, Yoshihiro Asai, Kazuya Goshima
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Publication number: 20240309825Abstract: An internal-combustion engine control device and a filter regeneration method according to the present invention are used for an internal-combustion engine fueled by gasoline and including a filter that traps particulate matter in exhaust gas. When regeneration of the filter is required, fuel cut control for temporarily stopping supply of fuel to the internal-combustion engine is performed to burn off the particulate matter trapped in the filter, and the fuel cut control is repeated while performing exhaust temperature control for increasing the temperature of the exhaust gas of the internal-combustion engine. This makes it possible to prevent particulate matter (PM) from remaining unburned in a filter regeneration process.Type: ApplicationFiled: July 5, 2022Publication date: September 19, 2024Inventors: Yuichi TOYAMA, Hiroshi MIYAMOTO, Kazuya SAITO, Shinjiro ISHIDA
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Publication number: 20240302305Abstract: A data analysis device includes an input unit that receives a measured value of an optoelectronic signal from a photoelectron spectroscopic device measuring the optoelectronic signal generated from a sample by photoelectron spectroscopy and an analysis unit that analyzes the depth profile of the sample by minimizing a sum of square deviations between a theoretical value of the optoelectronic signal and the measured value of the optoelectronic signal using the theoretical value of the optoelectronic signal when the sample is modeled into a multilayer body including a plurality of layers. The analysis unit calculates a relative concentration so as to satisfy a maximum smoothness condition that the relative concentration of the chemical species of the sample smoothly changes in the plurality of layers of the multilayer body in minimizing the sum of square deviations.Type: ApplicationFiled: April 28, 2021Publication date: September 12, 2024Applicant: Sumitomo Electric Industries, Ltd.Inventors: Yutaka HOSHINA, Kazuya TOKUDA, Yoshihiro SAITO
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Publication number: 20240254620Abstract: A forming method of a component used in a plasma processing apparatus includes irradiating an energy beam to a source material of the component while supplying the source material based on a surface state of the component.Type: ApplicationFiled: April 9, 2024Publication date: August 1, 2024Inventors: Michishige Saito, Kazuya Nagaseki, Shota Kaneko
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Patent number: 12049693Abstract: Provided is a cutting tool comprising a base body and a hard carbon film arranged on the base body, in which the hard carbon film includes an amorphous phase and a graphite phase, the degree of crystallinity of the hard carbon film is no more than 6.5%, and the degree of orientation of the graphite phase is no more than 6.Type: GrantFiled: April 24, 2020Date of Patent: July 30, 2024Assignees: SUMITOMO ELECTRIC HARDMETAL CORP., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Daiji Tabayashi, Haruyo Fukui, Yoshihiro Saito, Kazuya Tokuda, Yoshiharu Utsumi, Hajime Takamatsu
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Publication number: 20240167132Abstract: A metal powder for additive manufacturing allows producing an additively manufactured product having few internal defects, little deformation caused by strain and excellent mechanical properties, and an additively manufactured product uses the same. The metal powder for additive manufacturing includes, by mass %, 14.0% to 24.0% of Ni, 2.0% to 8.0% of Mo, 10.5% to 20.0% of Co, 0.01% to 2.00% of Al, and 0.10% to 3.00% of Ti, the balance being Fe and unavoidable impurities. The additively manufactured product includes, by mass %, 14.0% to 24.0% of Ni, 2.0% to 8.0% of Mo, 10.5% to 20.0% of Co, 0.01% to 2.00% of Al, and 0.10% to 3.00% of Ti, the balance being Fe and unavoidable impurities. In a cross section of the additively manufactured product taken parallel to the build direction, there is fewer than 0.1 defect having an equivalent circle diameter of more than 20 ?m per 1 mm2.Type: ApplicationFiled: March 17, 2022Publication date: May 23, 2024Applicant: Proterial, Ltd.Inventors: Norihide FUKUZAWA, Kazuya SAITO, Jue Wang
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Patent number: 11899386Abstract: A fixing device includes an endless fixing rotator, a temperature detector, a pressure rotator, a nip formation pad, and a plurality of heaters. The temperature detector detects a temperature of the fixing rotator. The pressure rotator is in contact with an outer circumferential surface of the fixing rotator. The nip formation pad is disposed inside a loop of the fixing rotator to form a nip between the fixing rotator and the pressure rotator. The plurality of heaters heat an inner circumferential surface of the fixing rotator and includes a first heater and a second heater. The first heater uniformly generates heat in a longitudinal direction of the fixing rotator and independently receives power. The second heater generates different heat generation amounts at different positions in the longitudinal direction of the fixing rotator and receives power together with the first heater.Type: GrantFiled: January 31, 2022Date of Patent: February 13, 2024Assignee: RICOH COMPANY, LTD.Inventor: Kazuya Saito
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Publication number: 20240040788Abstract: [PROBLEM] An object of the present invention is to provide a nonvolatile memory device having an excellent information retention characteristic, exhibiting high performance, and achieving practical mass-production, and a manufacturing method therefor. [SOLUTION] A nonvolatile memory device 1 has a laminated structure part including a plurality of Al2O3 layers 4 and a plurality of SiO2 layers 6 formed as two types of insulating layers formed with different compositions and disposed alternately, and an O-M1-O layer 5 of a 0.5 molecular layer to a 2.0 molecular layer, formed by a chemical bond between a metal element M1 and oxygen, and disposed on each joining interface between the insulating layers, the metal element M1 being an element other than elements constituting the insulating layers, and the nonvolatile memory device stores information by modulating an interface dipole induced in the vicinity of the O-M1-O layer 5 by external electrical stimulation.Type: ApplicationFiled: October 15, 2021Publication date: February 1, 2024Inventors: Noriyuki Miyata, Shutaro Asanuma, Kyoko Sumita, Yuusuke Miyaguchi, Kazuya Saito, Takehito Jinbo, Kazumasa Horita, Takeshi Masuda
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Publication number: 20240024161Abstract: A medical face guard (1) includes: a frame (10) to be worn on a head of a medical worker; a polarization shield (20) attached to the frame (10) so as to cover at least a front of eyes of the medical worker and transmitting only light in a predetermined polarization state; and a face shield (30) that is transmissive and has a low birefringence index, the face shield (30) being attached to the frame (10) so as to cover at least the front of the eyes of the medical worker, and positioned in front of the polarization shield (20) in a frontward direction with respect to the eyes.Type: ApplicationFiled: November 22, 2021Publication date: January 25, 2024Inventor: KAZUYA SAITO
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Publication number: 20240011848Abstract: A temperature measuring device 10 includes a spectrum data acquirer 11 configured to acquire spectrum data that indicates a spectrum of Brillouin scattered light generated by causing light to be incident on an optical fiber FUT, a spectrum data analyzer 12 configured to analyze the spectrum data and to obtain a Brillouin frequency shift amount, a corrector 13 configured to predict an amount of change in the Brillouin frequency shift amount due to structural relaxation of the optical fiber FUT from a thermal history of the optical fiber FUT, and configured to correct the Brillouin frequency shift amount obtained by the spectrum data analyzer 12 using the predicted amount of change, and a temperature calculator 14 configured to obtain a temperature of the optical fiber FUT on the basis of the Brillouin frequency shift amount corrected by the corrector 13.Type: ApplicationFiled: July 6, 2023Publication date: January 11, 2024Inventors: Yoshihiro KUMAGAI, Shin-ichirou TEZUKA, Satoshi MATSUURA, Kazuya SAITO
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Patent number: 11769980Abstract: An amplification fiber which can generate a laser beam in a visible region even when a silica glass is used as a base material of a core of the amplification fiber is realized. An amplification fiber according to an embodiment of the present disclosure includes a core configured to generate a laser beam from an excitation beam in a visible region, and a cladding surrounding the core. The core is composed of a core material including Dy, one or more elements selected from Al, Ge, and P, and a silica glass.Type: GrantFiled: February 18, 2021Date of Patent: September 26, 2023Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOYOTA SCHOOL FOUNDATIONInventors: Tomoya Okazaki, Kazuya Saito, Edson Haruhico Sekiya
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Patent number: 11754016Abstract: A fuel injection control device and a fuel injection control method for an internal combustion engine according to the present invention correct a basic pulse width by a cylinder-specific correction value that is based on injection variations among fuel injection valves to specify a cylinder-specific pulse width, determine whether or not a split number is acceptable based on a minimum pulse width and a pulse width per one injection calculated from the cylinder-specific pulse width and the split number to modify the split number based on a result of the acceptance determination, modify an acceptance determination reference value which is used in the acceptance determination based on the correction value for each cylinder, and execute split injection based on the split number, the basic pulse width, and the correction value for each cylinder.Type: GrantFiled: March 9, 2021Date of Patent: September 12, 2023Assignee: Hitachi Astemo, Ltd.Inventors: Kazuya Saito, Hiroshi Miyamoto
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Publication number: 20230220213Abstract: Compositions for manufacturing a thin film are provided. The compositions may include a compound having a structure of Chemical Formula 1: M may be strontium (Sr) or barium (Ba), X1 and X2 may each independently be oxygen (O) or a substituted or unsubstituted alkylamino group having 1 to 5 carbon atoms, R1 and R2 may each independently be a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms or a substituted or unsubstituted perfluoro alkyl group having 1 to 5 carbon atoms, R3 may be hydrogen or a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms, L may be a substituted or unsubstituted polyether having 1 to 6 oxygen atoms, or a substituted or unsubstituted polyamine having 1 to 6 nitrogen atoms, or a substituted or unsubstituted polyetheramine having 1 to 6 oxygen atoms or nitrogen atoms, and n may be an integer of 1 to 6.Type: ApplicationFiled: December 22, 2022Publication date: July 13, 2023Applicant: ADEKA CORPORATIONInventors: JAE WOON KIM, Seung-min Ryu, Haruyoshi Sato, Kazuya Saito, Masayuki Kimura, Takahiro Yoshii, Tsubasa Shiratori, Min Jae Sung, Gyu-Hee Park, Youn Joung Cho
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Patent number: 11643711Abstract: Provided are a laminate shaped article made of a maraging steel and having excellent toughness, a method for manufacturing the same, and a metal powder for laminate shaping. The laminate shaped article is made of a maraging steel comprising 0.1-5.0 mass % of Ti. When sis is performed on concentration distribution of Ti in a cross section parallel to a lamination direction of the above laminate shaped article, a length of a linear Ti-rich portion having a Ti concentration B of (1.5×A) or more with respect to an average Ti concentration A in the cross section is 15 ?m or less. In addition, the method for manufacturing the laminate shaped article uses a metal powder made of a maraging steel comprising 0.1-5.0 mass % of Ti, and a heat source output is set to 50-330 W and a scanning speed is set to 480-3000 mm/sec during the laminate shaping.Type: GrantFiled: December 17, 2018Date of Patent: May 9, 2023Assignee: HITACHI METALS, LTD.Inventors: Norihide Fukuzawa, Koichi Sakamaki, Yousuke Nakano, Kousuke Kuwabara, Shiho Fukumoto, Kazuya Saito
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Publication number: 20230119411Abstract: A fuel injection control device and a fuel injection control method for an internal combustion engine according to the present invention correct a basic pulse width by a cylinder-specific correction value that is based on injection variations among fuel injection valves to specify a cylinder-specific pulse width, determine whether or not a split number is acceptable based on a minimum pulse width and a pulse width per one injection calculated from the cylinder-specific pulse width and the split number to modify the split number based on a result of the acceptance determination, modify an acceptance determination reference value which is used in the acceptance determination based on the correction value for each cylinder, and execute split injection based on the split number, the basic pulse width, and the correction value for each cylinder.Type: ApplicationFiled: March 9, 2021Publication date: April 20, 2023Inventors: Kazuya SAITO, Hiroshi MIYAMOTO
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Publication number: 20230085804Abstract: A fold line design method is a method for folding a target member. The method includes: setting a ribbase on a plane along a main surface of the target member; designing a plurality of first fold lines each of which extend radially from the ribbase as a starting point, and in which a mountain fold line and a valley fold line are alternately disposed; and designing a plurality of second fold lines which respectively connect the first fold lines adjacent to each other among the plurality of first fold lines, and constitute one continuous fold line.Type: ApplicationFiled: November 22, 2022Publication date: March 23, 2023Applicant: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventor: Kazuya SAITO
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Publication number: 20220331858Abstract: A spherical Ti-based powder and a manufacturing method therefor are provided. The spherical Ti-based powder has a 50% particle size (D50) of 1 to 250 ?m in a cumulative particle size distribution based on volume, in which a total amount of oxygen and hydrogen is less than 3000 ppm by mass, an area defect rate in a cross-section of the spherical Ti-based powder is less than 0.100%, and an area circularity of the spherical Ti-based powder in a secondary projection image is 0.90 or more. The spherical Ti-based powder can be obtained by subjecting a pulverized Ti-based powder to a fusion and solidification treatment using a thermal plasma in which a flow rate of hydrogen gas as a working gas is adjusted to less than 0.3 l/min.Type: ApplicationFiled: June 30, 2022Publication date: October 20, 2022Applicant: HITACHI METALS, LTD.Inventors: Koichi Sakamaki, Kazuya SAITO, KIYOMI NAKAMURA
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Patent number: 11474461Abstract: A disclosed fixing device includes a pressing member; an endless tubular fixing member disposed opposite to the pressing member; a heating source configured to heat the fixing member; a nip forming member disposed opposite to the pressing member via the fixing member to form a nip portion; and a supply unit configured to supply lubricant to a portion of an inner surface of the fixing member, the portion facing the nip forming member, wherein the nip forming member includes a contact portion that contacts the inner surface of the fixing member, the contact portion includes a guide portion for guiding lubricant, and the guide portion is formed by extending obliquely from opposite ends in a width direction toward a center of the fixing member as the contact portion moves from upstream to downstream in a rotational direction of the fixing member.Type: GrantFiled: March 7, 2019Date of Patent: October 18, 2022Assignee: RICOH COMPANY, LTD.Inventors: Ryuuichi Mimbu, Toshihiko Shimokawa, Kazuya Saito
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Publication number: 20220324887Abstract: An organometallic adduct compound and a method of manufacturing an integrated circuit device, the organometallic adduct compound being represented by General Formula (I):Type: ApplicationFiled: March 30, 2022Publication date: October 13, 2022Applicant: ADEKA CORPORATIONInventors: Seungmin RYU, Younsoo KIM, Jaewoon KIM, Kazuki HARANO, Kazuya SAITO, Takanori KOIDE, Yutaro AOKI, Gyuhee PARK, Younjoung CHO, Wakana FUSE, Yoshiki MANABE, Hiroyuki UCHIUZOU, Masayuki KIMURA, Takahiro YOSHII
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Patent number: 11448988Abstract: A fixing device includes a fixing rotator that rotates and a heat source that heats the fixing rotator. A pressure rotator contacts an outer circumferential surface of the fixing rotator. A nip former is disposed opposite the pressure rotator via the fixing rotator to form a nip between the fixing rotator and the pressure rotator. A support supports the nip former and includes a metal member. The nip former includes a resin nip forming member made of resin and a metal nip forming member made of metal and interposed between the resin nip forming member and the fixing rotator. The metal nip forming member includes a contact face disposed in at least a part of a lateral end span of the nip former in a longitudinal direction of the nip former. The contact face contacts the metal member of the support.Type: GrantFiled: April 27, 2021Date of Patent: September 20, 2022Assignee: RICOH COMPANY, LTD.Inventor: Kazuya Saito