Patents by Inventor Kosuke Doi
Kosuke Doi 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: 11915877Abstract: A multilayer ceramic electronic component includes a multilayer body and an external electrode on each of both end surfaces of the multilayer body. The external electrode includes an underlying electrode layer and a plating layer that is disposed on the underlying electrode layer. The underlying electrode layer includes Ni as a first metal component, Sn as a second metal component, and a ceramic material, and includes an alloy portion that is provided around the ceramic material and includes an alloyed Ni defining the first metal component and an alloyed Sn defining the second metal component.Type: GrantFiled: March 21, 2023Date of Patent: February 27, 2024Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Taisuke Kanzaki, Kosuke Onishi, Akitaka Doi
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Publication number: 20160231609Abstract: The present invention relates to a display device such as a liquid crystal display device including a first substrate and a second substrate with liquid crystal injected between the first and second substrates. In the display device, the second substrate includes a plurality of columnar spacers, and the first substrate has a protrusion in an area facing the top of the columnar spacer. The plurality of columnar spacers formed on the second substrate are not arranged at even intervals in the longitudinal direction of the scan line, and/or are not aligned on the line but are arranged at random.Type: ApplicationFiled: April 20, 2016Publication date: August 11, 2016Inventors: Kosuke DOI, Toshiyuki KOSHITA
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Patent number: 8479704Abstract: A sliding component for an internal combustion engine includes a component main body made of titanium or a titanium alloy, a surface hardened layer provided on a surface of the component main body, a diamond-like carbon film provided on the surface hardened layer, and a titanium layer provided between the surface hardened layer and the diamond-like carbon film.Type: GrantFiled: December 15, 2009Date of Patent: July 9, 2013Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Kosuke Doi
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Publication number: 20120314178Abstract: The present invention relates to a display device such as a liquid crystal display device including a first substrate and a second substrate with liquid crystal injected between the first and second substrates. In the display device, the second substrate includes a plurality of columnar spacers, and the first substrate has a protrusion in an area facing the top of the columnar spacer. The plurality of columnar spacers formed on the second substrate are not arranged at even intervals in the longitudinal direction of the scan line, and/or are not aligned on the line but are arranged at random.Type: ApplicationFiled: June 6, 2012Publication date: December 13, 2012Inventors: Kosuke DOI, Toshiyuki KOSHITA
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Patent number: 8293032Abstract: A process which can make a titanium alloy bolt at ambient temperature is disclosed. A Ti—Fe—O alloy is used as a material. It has a screw thread formed thereon by drawing and rolling.Type: GrantFiled: March 29, 2006Date of Patent: October 23, 2012Assignees: Honda Motor Co., Ltd., Meira Co., Ltd.Inventors: Hiroyuki Horimura, Kosuke Doi, Hideaki Sumitomo
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Publication number: 20100275875Abstract: A sliding component for an internal combustion engine includes a component main body made of titanium or a titanium alloy, a surface hardened layer provided on a surface of the component main body, a diamond-like carbon film provided on the surface hardened layer, and a titanium layer provided between the surface hardened layer and the diamond-like carbon film.Type: ApplicationFiled: December 15, 2009Publication date: November 4, 2010Applicant: Yamaha Hatsudoki Kabushi KaishaInventor: Kosuke Doi
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Patent number: 7803236Abstract: To provide a valve spring retainer made of titanium, capable of reduction in raw material cost and processing cost, a valve spring retainer is formed out of a titanium alloy raw material composed of 0.8 wt %?Fe?1.2 wt %, 0.24 wt %?O?0.32 wt %, 0.02 wt %?N?0.05 wt %, and balance Ti containing unavoidable impurities through cold forging.Type: GrantFiled: March 30, 2005Date of Patent: September 28, 2010Assignee: Honda Motor Co., Ltd.Inventors: Hiroyuki Horimura, Kosuke Doi
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Patent number: 7600499Abstract: A lightweight and high-strength valve lifter is excellent in wear resistance and sliding properties. The valve lifter is made of a titanium alloy having a hardened layer on the top surface thereof, on which a cam is caused to slide. The hardened layer is composed of an ?-case and an oxygen diffusion layer under the ?-case. The ?-case 22 is formed in a thickness of not less than 3 ?m and not more than 15 ?m. The oxygen diffusion layer has a thickness of not less than 10 ?m. The hardened layer on the top surface of the valve lifter is formed by oxidation treatment in a furnace at a temperature of not less than 600° C. An outermost oxide layer 21 formed on the ?-case as a result of the oxidation treatment is removed.Type: GrantFiled: March 29, 2006Date of Patent: October 13, 2009Assignees: Honda Motor Co., Ltd., Tanaka Seimitsu Kogyo Co., Ltd.Inventors: Hiroyuki Horimura, Kosuke Doi, Masaya Takata
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Patent number: 7308760Abstract: A valve lifter and a method of manufacture thereof is provided in which sliding properties of a cam on a cam-contacting sliding surface in an upper surface of a valve lifter are improved by forming the cam-contacting sliding surface as a concave surface to permit retention of lubricating oil therein. The cam-contacting sliding surface is integrally provided in an outer wall of an upper part of a valve lifter. The cam-contacting sliding surface is formed as a concave surface to provide better retention of the lubricating oil. The concave sliding surface is formed during high temperature oxidation of the valve lifter by permitting the natural slumping down of the upper part due to its own weight under the gravity.Type: GrantFiled: March 14, 2006Date of Patent: December 18, 2007Assignee: Honda Motor Co., Ltd.Inventors: Hiroyuki Horimura, Kosuke Doi
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Patent number: 7268061Abstract: A method for attaching a substrate such as a semiconductor wafer in which cracking or chipping can be prevented when the substrate is thinned involves applying adhesive liquid onto a circuit (element)-formed surface of a semiconductor wafer. The adhesive liquid undergoes preliminary drying, so that its flowability is reduced and it can keep its shape as an adhesive layer. For the preliminary drying, heating is conducted for 5 minutes at a temperature of 80° C. by using an oven. The thickness of the adhesive layer is determined based on the irregularities of the circuit which has been formed on the surface of the semiconductor wafer. Next, a supporting plate is attached to the semiconductor wafer on which the adhesive layer of a desired thickness has been formed.Type: GrantFiled: December 1, 2004Date of Patent: September 11, 2007Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Atsushi Miyanari, Kosuke Doi, Ken Miyagi, Yoshihiro Inao, Koichi Misumi
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Patent number: 7228836Abstract: A spring retainer formed from a titanium alloy and comprising a cylinder and a brim formed integrally with the cylinder is disclosed. The brim has on a top thereof a slope formed such that a thickness of the brim decreases radially outwardly.Type: GrantFiled: September 27, 2005Date of Patent: June 12, 2007Assignees: Honda Motor Co., Ltd., Tanaka Seimitsu Kogyo Co., Ltd.Inventors: Hiroyuki Horimura, Kosuke Doi, Yoshikazu Kanazawa, Masahiro Sawai
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Publication number: 20060234800Abstract: A process which can make a titanium alloy bolt at ambient temperature is disclosed. A Ti—Fe—O alloy is used as a material. It has a screw thread formed thereon by drawing and rolling.Type: ApplicationFiled: March 29, 2006Publication date: October 19, 2006Inventors: Hiroyuki Horimura, Kosuke Doi, Hideaki Sumitomo
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Publication number: 20060219200Abstract: A lightweight and high-strength valve lifter is excellent in wear resistance and sliding properties. The valve lifter is made of a titanium alloy having a hardened layer on the top surface thereof, on which a cam is caused to slide. The hardened layer is composed of an ?-case and an oxygen diffusion layer under the ?-case. The ?-case 22 is formed in a thickness of not less than 3 ?m and not more than 15 ?m. The oxygen diffusion layer has a thickness of not less than 10 ?m. The hardened layer on the top surface of the valve lifter is formed by oxidation treatment in a furnace at a temperature of not less than 600° C. An outermost oxide layer 21 formed on the ?-case as a result of the oxidation treatment I s removed.Type: ApplicationFiled: March 29, 2006Publication date: October 5, 2006Inventors: Hiroyuki Horimura, Kosuke Doi, Masaya Takata
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Publication number: 20060213472Abstract: A valve lifter and a method of manufacture thereof is provided in which sliding properties of a cam on a cam-contacting sliding surface in an upper surface of a valve lifter are improved by forming the cam-contacting sliding surface as a concave surface to permit retention of lubricating oil therein. The cam-contacting sliding surface is integrally provided in an outer wall of an upper part of a valve lifter. The cam-contacting sliding surface is formed as a concave surface to provide better retention of the lubricating oil. The concave sliding surface is formed during high temperature oxidation of the valve lifter by permitting the natural slumping down of the upper part due to its own weight under the gravity.Type: ApplicationFiled: March 14, 2006Publication date: September 28, 2006Applicant: Honda Motor Co., Ltd.Inventors: Hiroyuki Horimura, Kosuke Doi
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Publication number: 20060067851Abstract: A spring retainer formed from a titanium alloy and comprising a cylinder and a brim formed integrally with the cylinder is disclosed. The brim has on a top thereof a slope formed such that a thickness of the brim decreases radially outwardly.Type: ApplicationFiled: September 27, 2005Publication date: March 30, 2006Applicants: HONDA MOTOR CO., LTD., TANAKA SEIMITSU KOGYO CO., LTD.Inventors: Hiroyuki Horimura, Kosuke Doi, Yoshikazu Kanazawa, Masahiro Sawai
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Publication number: 20050230007Abstract: To provide a valve spring retainer made of titanium, capable of reduction in raw material cost and processing cost, a valve spring retainer is formed out of a titanium alloy raw material composed of 0.8 wt %?Fe?1.2 wt %, 0.24 wt %?O?0.32 wt %, 0.02 wt %?N?0.05 wt %, and balance Ti containing unavoidable impurities through cold forging.Type: ApplicationFiled: March 30, 2005Publication date: October 20, 2005Applicant: HONDA MOTOR CO., LTD.Inventors: Hiroyuki Horimura, Kosuke Doi
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Publication number: 20050170612Abstract: A method for attaching a substrate such as a semiconductor wafer in which cracking or chipping can be prevented when the substrate is thinned involves applying adhesive liquid onto a circuit (element)-formed surface of a semiconductor wafer. The adhesive liquid undergoes preliminary drying, so that its flowability is reduced and it can keep its shape as an adhesive layer. For the preliminary drying, heating is conducted for 5 minutes at a temperature of 80° C. by using an oven. The thickness of the adhesive layer is determined based on the irregularities of the circuit which has been formed on the surface of the semiconductor wafer. Next, a supporting plate is attached to the semiconductor wafer on which the adhesive layer of a desired thickness has been formed.Type: ApplicationFiled: December 1, 2004Publication date: August 4, 2005Applicant: Tokyo Ohka Kogyo Co., Ltd.Inventors: Atsushi Miyanari, Kosuke Doi, Ken Miyagi, Yoshihiro Inao, Koichi Misumi
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Publication number: 20040244888Abstract: To provide a titanium alloy which is a high-strength low-alloy with a 750 MPa or more in terms of tensile strength. A production method is capable of producing the titanium alloy by using a low-priced, low-grade sponge titanium as a raw material. This high-strength low-alloy titanium alloy has an alloy composition containing O of from 0.2 to 0.8%, C of from 0.01 to 0.15%, N of from 0.01 to 0.07%, Fe of from 0.3 to 1.0% and the balance being substantially Ti. At the time of production, a low-grade sponge Ti containing N of 0.01% or more and Fe of 0.2% or more is used in at least a portion of raw materials to allow it to be a source of the aforementioned Ni and Fe components.Type: ApplicationFiled: March 9, 2004Publication date: December 9, 2004Inventors: Hiroyuki Horimura, Kosuke Doi, Akihiro Suzuki, Hisao Kamiya
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Patent number: 6126711Abstract: A raw material for powder metallurgy contains at least 0.5 vol % and at most 10 vol % of alumina powder of which the sieve fraction with a sieve opening of 30 .mu.m is at most 0.1 wt %, and a remaining part of aluminum alloy powder. The moisture content of the alumina powder is at most 0.15 wt. % with respect to the alumina powder. Agglomeration of particles is thereby minimized or avoided. Highly reliable raw material for powder metallurgy having superior fatigue strength, impact resistance and wear resistance can be obtained. A method of preparing such a mixed powder raw material involves air classifying the powder materials, dry ball mixing the materials, and then annealing the mixed powder.Type: GrantFiled: May 17, 1999Date of Patent: October 3, 2000Assignees: Toyo Aluminium Kabushiki Kaisha, Honda Giken Kogyo Kabushiki Kaisha, Sumitomo Electric Industries, Ltd.Inventors: Jun Kusui, Kazuhiko Yokoe, Kazuo Fujii, Kyo Takahashi, Kosuke Doi, Hiroyuki Horimura, Hisao Hattori, Toshihiko Kaji, Yoshinobu Takeda, Koji Yamada