Patents by Inventor Tatsuo Hashimoto
Tatsuo Hashimoto 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: 20210060657Abstract: A surface-coated cutting tool includes a tool body, a lower layer, and an upper layer. The lower layer consists of a W layer, a metal carbide layer, and a metal carbonitride layer. The W layer is formed from a surface of the tool body to a depth of 10 to 500 nm. The metal carbide layer includes any one of Ti, Cr, Zr, Hf, Nb, and Ta. The upper layer is alternately laminated with an A layer and a B layer and has a total thickness of 1.0 to 8.0 ?m. The A layer has a thickness of 0.1 to 5.0 ?m and is represented by (AlxCr1-x)N (0.40?x?0.80). The B layer has a thickness of 0.1 to 5.0 ?m and is represented by (Al1-a-b-c-sTiaCrbSicYd)N (0?a?0.40, 0.05?b?0.40, 0?c?0.20, and 0.01?d?0.10).Type: ApplicationFiled: March 22, 2019Publication date: March 4, 2021Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Tatsuki KINOSHITA, Tatsuo HASHIMOTO, Shun SATO, Yuto SUGAWARA, Takuya MAEKAWA
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Publication number: 20210016361Abstract: A surface-coated cutting tool includes: a tool body formed of a tungsten carbide-based cemented carbide; a lower layer and an upper layer provided on the tool body. The lower layer is formed of a W layer. A metal carbide layer is formed directly on the W layer. A metal carbonitride layer is formed directly on the metal carbide layer. The upper layer has an alternately laminated structure of A layer and B layer. The A layer is formed of an (Al, Ti)N layer represented by (AlxTi1-x)N (where x is an atomic ratio and satisfies 0.40?x?0.70). The B layer is formed of an (Al, Ti, Cr, Si, Y)N layer represented by (Al1-a-b-c-dTiaCrbSicYd)N (where a, b, c, and d are atomic ratios and satisfy 0?a?0.40, 0.05?b?0.40, 0?c?0.20, and 0.01?d?0.10).Type: ApplicationFiled: March 25, 2019Publication date: January 21, 2021Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Tatsuki KINOSHITA, Tatsuo HASHIMOTO, Shun SATO, Yuto SUGAWARA, Takuya MAEKAWA
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Patent number: 10751804Abstract: At least a (Al1-a-b-cCraSibCuc)N (where 0.15?a?0.40, 0.05?b?0.20, and 0.005?c?0.05) layer is provided on a surface of a tool body, a Cr concentration or a Cu concentration periodically changes in a layer thickness direction, a concentration Crmax in a highest content point of Cr is in a range of a<Crmax?1.3a, a concentration Crmin in a lowest content point of Cr is in a range of 0.50a?Crmin<a, and optionally in a case where a Cu composition at one point z along the layer thickness direction is represented by cz and a Cr composition at the point z is represented by az, (cz/az)/(c/a) is 0.7 to 1.5 over the layer thickness direction entirely.Type: GrantFiled: February 28, 2017Date of Patent: August 25, 2020Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Shun Sato, Tsuyoshi Ogami, Koichi Tanaka, Tatsuo Hashimoto, Natsuki Ichimiya
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Patent number: 10751806Abstract: Provided is a surface-coated cutting tool including: a cutting tool body and a hard coating layer on a surface of the cutting tool body, wherein the hard coating layer includes a complex nitride layer of Al, Cr, Si, and Cu, the complex nitride layer of Al, Cr, Si, and Cu includes a main phase, and CrSi-rich particles and Al-rich particles that are dispersed in the main phase, the main phase satisfies 0.15???0.40, 0.05???0.20, 0.005???0.05, and 0.45?x?0.60, the CrSi-rich particles satisfy 0.20???0.55, 0.20???0.55, 0???0.10, and 0.02?x?0.35, the Al-rich particles satisfy 0.10???0.25, 0.05???0.25, 0???0.10, and 0.02?x?0.35 in a composition formula: (Al1-?-?-?Cr?Si?Cu?)1-xNx), and an occupancy area ratio of the CrSi-rich particles having a major axis of 100 nm or more is 0.20 to 2.0 area %; and an occupancy area ratio of the Al-rich particles having a major axis of 100 nm or more is 0.50 to 3.0 area %.Type: GrantFiled: March 10, 2017Date of Patent: August 25, 2020Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Tsuyoshi Ogami, Tatsuo Hashimoto, Natsuki Ichimiya
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Patent number: 10618113Abstract: A surface-coated cutting tool includes a tool body and a hard coating layer including a lower layer and an upper layer. The lower layer is made of a complex nitride layer of Al, Ti, and Si with the thickness of 0.3 to 3.0 ?m. It satisfies 0.3???0.5 and 0.01???0.10 (atomic ratio) being expressed by (Al1-?-?Ti?Si?)N. The upper layer is made of a complex nitride layer of Al, Cr, Si, and Cu with the thickness of 0.5 to 5.0 ?m. It satisfies 0.15?a?0.40, 0.05?b?0.20, and 0.005?c?0.05 (atomic ratio) being expressed by (Al1-a-b-cCraSibCuc)N. The upper layer is made of crystals having a hexagonal structure, and a half width of a diffraction peak of a (110) plane present in a range of 2?=55° to 65° is 1.0° to 3.5°.Type: GrantFiled: October 27, 2016Date of Patent: April 14, 2020Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Tsuyoshi Ogami, Tatsuo Hashimoto, Natsuki Ichimiya
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Patent number: 10618114Abstract: A surface-coated cutting tool includes: a tool body made of any one of tungsten carbide-based cemented carbide, TiCN-based cermet, a cubic boron nitride sintered material, and high-speed tool steel; and a hard coating layer provided on a surface of the tool body. The hard coating layer includes at least a complex nitride layer of Al, Cr, Si, and Cu with an average layer thickness of 0.5 to 8.0 ?m. The complex nitride layer of (Al1-a-b-cCraSibCuc)N satisfies 0.15?a?0.40, 0.05?b?0.20, and 0.005?c?0.05 (here, each of a, b, and c is in atomic ratio). The complex nitride layer has a hexagonal crystal structure. A half width of a diffraction peak of a (110) plane present in a range of 2?=55° to 65° by performing X-ray diffraction on the complex nitride layer is 1.0° to 3.5°.Type: GrantFiled: October 27, 2016Date of Patent: April 14, 2020Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Tsuyoshi Ogami, Tatsuo Hashimoto, Natsuki Ichimiya
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Patent number: 10569339Abstract: In a surface-coated cutting tool, a hard coating includes one or more layers. At least one layer thereof is a hard coating layer composed of a complex nitride or carbonitride layer of Al, Cr, and Si and satisfying (Al1-x-yCrxSiy)(CzN1-z) where x, y and z are atomic ratios and satisfy 0.1?x?0.4, 0.01?y?0.2, and 0?z?0.3, respectively. The hard coating layer contains particles including: less than 10 atomic % of non-metal components selected from C and N; and metal components selected from Cr, Al and Si. In the cross-section perpendicular to the tool body surface, the number ratio of oblate particles with an Al content of 50 atomic % or less, a long diameter of less than 0.5 ?m, and an aspect ratio of 2.0 or more is 90% or more with respect to the total number of the particles.Type: GrantFiled: January 22, 2016Date of Patent: February 25, 2020Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Kazuaki Senbokuya, Masakuni Takahashi, Tsuyoshi Ogami, Tatsuo Hashimoto
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Patent number: 10358712Abstract: This surface-coated cutting tool includes a cutting tool body made of tungsten carbide-based cemented carbide and a hard coating layer deposited on a surface of the cutting tool body, in which the hard coating layer has at least one (Ti1-xAlx)N layer (0.4?X?0.7, X is an atomic ratio) with an average layer thickness of 0.5 to 10 ?m, the (Ti, Al)N layer has a cubic crystal structure, and Ia?Ib<5 is satisfied when Ia (%) is an average absorptance of the hard coating layer at a wavelength of 400 to 500 nm and Ib (%) is an average absorptance of the hard coating layer at a wavelength of 600 to 700 nm.Type: GrantFiled: September 3, 2015Date of Patent: July 23, 2019Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Takashi Kimura, Masakuni Takahashi, Kazuaki Senbokuya, Tatsuo Hashimoto
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Publication number: 20190070668Abstract: At least a (Al1-a-b-cCraSibCuc)N (where 0.15?a?0.40, 0.05?b?0.20, and 0.005?c?0.05) layer is provided on a surface of a tool body, a Cr concentration or a Cu concentration periodically changes in a layer thickness direction, a concentration Crmax in a highest content point of Cr is in a range of a<Crmax?1.3a, a concentration Crmin in a lowest content point of Cr is in a range of 0.50a?Crmin<a, and optionally in a case where a Cu composition at one point z along the layer thickness direction is represented by cz and a Cr composition at the point z is represented by az, (cz/az)/(c/a) is 0.7 to 1.5 over the layer thickness direction entirely.Type: ApplicationFiled: February 28, 2017Publication date: March 7, 2019Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Shun SATO, Tsuyoshi OGAMI, Koichi TANAKA, Tatsuo HASHIMOTO, Natsuki ICHIMIYA
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Publication number: 20190039147Abstract: Provided is a surface-coated cutting tool including: a cutting tool body and a hard coating layer on a surface of the cutting tool body, wherein the hard coating layer includes a complex nitride layer of Al, Cr, Si, and Cu, the complex nitride layer of Al, Cr, Si, and Cu includes a main phase, and CrSi-rich particles and Al-rich particles that are dispersed in the main phase, the main phase satisfies 0.15???0.40, 0.05???0.20, 0.005???0.05, and 0.45?x?0.60, the CrSi-rich particles satisfy 0.20???0.55, 0.20???0.55, 0???0.10, and 0.02?x?0.35, the Al-rich particles satisfy 0.10???0.25, 0.05???0.25, 0???0.10, and 0.02?x?0.35 in a composition formula: (Al1-?-?-?Cr?Si?Cu?)1-xNx), and an occupancy area ratio of the CrSi-rich particles having a major axis of 100 nm or more is 0.20 to 2.0 area %; and an occupancy area ratio of the Al-rich particles having a major axis of 100 nm or more is 0.50 to 3.0 area %.Type: ApplicationFiled: March 10, 2017Publication date: February 7, 2019Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Tsuyoshi OGAMI, Tatsuo HASHIMOTO, Natsuki ICHIMIYA
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Publication number: 20180326501Abstract: A surface-coated cutting tool includes a tool body and a hard coating layer including a lower layer and an upper layer. The lower layer is made of a complex nitride layer of Al, Ti, and Si with the thickness of 0.3 to 3.0 ?m. It satisfies 0.3???0.5 and 0.01???0.10 (atomic ratio) being expressed by (Al1-?-?Ti?Si?)N. The upper layer is made of a complex nitride layer of Al, Cr, Si, and Cu with the thickness of 0.5 to 5.0 ?m. It satisfies 0.15?a?0.40, 0.05?b?0.20, and 0.005?c?0.05 (atomic ratio) being expressed by (Al1-a-b-cCraSibCuc)N. The upper layer is made of crystals having a hexagonal structure, and a half width of a diffraction peak of a (110) plane present in a range of 2?=55° to 65° is 1.0° to 3.5°.Type: ApplicationFiled: October 27, 2016Publication date: November 15, 2018Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Tsuyoshi OGAMI, Tatsuo HASHIMOTO, Natsuki ICHIMIYA
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Publication number: 20180311743Abstract: A surface-coated cutting tool includes: a tool body made of any one of tungsten carbide-based cemented carbide, TiCN-based cermet, a cubic boron nitride sintered material, and high-speed tool steel; and a hard coating layer provided on a surface of the tool body. The hard coating layer includes at least a complex nitride layer of Al, Cr, Si, and Cu with an average layer thickness of 0.5 to 8.0 ?m. The complex nitride layer of (Al1-a-b-cCraSibCuc)N satisfies 0.15?a?0.40, 0.05?b?0.20, and 0.005?c?0.05 (here, each of a, b, and c is in atomic ratio). The complex nitride layer has a hexagonal crystal structure. A half width of a diffraction peak of a (110) plane present in a range of 2?=55° to 65° by performing X-ray diffraction on the complex nitride layer is 1.0° to 3.5°.Type: ApplicationFiled: October 27, 2016Publication date: November 1, 2018Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Tsuyoshi OGAMI, Tatsuo HASHIMOTO, Natsuki ICHIMIYA
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Patent number: 9903014Abstract: A surface-coated cutting tool of the present invention includes: a hard coating layer which is vapor-deposited on a surface of a tool body made of tungsten carbide-based cemented carbide and has an average thickness of 2 mm to 10 mm, in which (a) the hard coating layer comprises a layer made of complex nitride of Al, Cr, and B in which a ratio (atomic ratio) of the amount of Cr is 0.2 to 0.45 and a ratio (atomic ratio) of the amount of B is 0.01 to 0.1 to the total amount of Al, Cr, and B, and (b) in an area within 100 mm from an edge tip on a flank face of the surface-coated cutting tool, the hard coating layer has a granular crystal grain structure and the average grain size of granular crystal grains is 0.1 mm to 0.4 mm on the surface of the hard coating layer.Type: GrantFiled: March 18, 2014Date of Patent: February 27, 2018Assignee: MITSUBISHI MATERIALS CORPORATIONInventors: Tsuyoshi Ogami, Tatsuo Hashimoto
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Publication number: 20180021858Abstract: In a surface-coated cutting tool, a hard coating includes one or more layers. At least one layer thereof is a hard coating layer composed of a complex nitride or carbonitride layer of Al, Cr, and Si and satisfying (Al1-x-yCrxSiy)(CzN1-z) where x, y and z are atomic ratios and satisfy 0.1?x?0.4, 0.01?y?0.2, and 0?z?0.3, respectively. The hard coating layer contains particles including: less than 10 atomic % of non-metal components selected from C and N; and metal components selected from Cr, Al and Si. In the cross-section perpendicular to the tool body surface, the number ratio of oblate particles with an Al content of 50 atomic % or less, a long diameter of less than 0.5 ?m, and an aspect ratio of 2.0 or more is 90% or more with respect to the total number of the particles.Type: ApplicationFiled: January 22, 2016Publication date: January 25, 2018Applicant: MITSUBISHI MATERIALS CORPORATIONInventors: Kazuaki SENBOKUYA, Masakuni TAKAHASHI, Tsuyoshi OGAMI, Tatsuo HASHIMOTO
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Publication number: 20170283936Abstract: This surface-coated cutting tool includes a cutting tool body made of tungsten carbide-based cemented carbide and a hard coating layer deposited on a surface of the cutting tool body, in which the hard coating layer has at least one (Ti1-xAlx)N layer (0.4?X?0.7, X is an atomic ratio) with an average layer thickness of 0.5 to 10 ?m, the (Ti, Al)N layer has a cubic crystal structure, and Ia?Ib<5 is satisfied when Ia (%) is an average absorptance of the hard coating layer at a wavelength of 400 to 500 nm and Ib (%) is an average absorptance of the hard coating layer at a wavelength of 600 to 700 nm.Type: ApplicationFiled: September 3, 2015Publication date: October 5, 2017Inventors: Takashi Kimura, Masakuni Takahashi, Kazuaki Senbokuya, Tatsuo Hashimoto
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Publication number: 20160040283Abstract: A surface-coated cutting tool of the present invention includes: a hard coating layer which is vapor-deposited on a surface of a tool body made of tungsten carbide-based cemented carbide and has an average thickness of 2 mm to 10 mm, in which (a) the hard coating layer comprises a layer made of complex nitride of Al, Cr, and B in which a ratio (atomic ratio) of the amount of Cr is 0.2 to 0.45 and a ratio (atomic ratio) of the amount of B is 0.01 to 0.1 to the total amount of Al, Cr, and B, and (b) in an area within 100 mm from an edge tip on a flank face of the surface-coated cutting tool, the hard coating layer has a granular crystal grain structure and the average grain size of granular crystal grains is 0.1 mm to 0.4 mm on the surface of the hard coating layer.Type: ApplicationFiled: March 18, 2014Publication date: February 11, 2016Inventors: Tsuyoshi Ogami, Tatsuo Hashimoto
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Patent number: 5209978Abstract: A soft capsule composed of a plurality of cells coalesced to each other and filling substances encapsulated in the individual cells, the wall of at least one of the cells being formed of a material different from a material forming the wall of at least one of the other cells, and said capsule being seamless.Type: GrantFiled: October 10, 1991Date of Patent: May 11, 1993Assignee: Taisho Pharmaceutical Co., Ltd.Inventors: Tadashi Kosaka, Kazuki Omata, Tatsuo Hashimoto, Teruaki Yamazaki, Kazuo Hayashi, Tomiya Hosoi, Kenichi Ikuta
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Patent number: 4987031Abstract: The present invention relates to gelatin composite for the use of capsules to fill medicine and the like, coating agents or binding agents of tablets, casing materials and so on. A gelatin composite of the invention is characterized by comprising gelatin and polypeptide as an essential component, wherein the polypeptide is in the range of 15-70% by weight, referring to the total weight of the polypeptide and gelatin, and the gelatin has a gelly strength of 250 bloom or greater. The gelatin composite prevents insolubilization of the gelatin due to the passage of time without any degradation of shape-retaining ability of the gelatin composite.Type: GrantFiled: June 1, 1989Date of Patent: January 22, 1991Inventors: Shinzo Tatematsu, Kazuki Omata, Tatsuo Hashimoto, Masato Takahashi, Noriichi Ito