Patents by Inventor Shogo Muramatsu
Shogo Muramatsu 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: 8321368Abstract: There are provided an identification device, an identification method and an identification processing program, which are capable of significantly reducing a processing burden. An identification device 1 can judge the magnitude relation between an occurrence probability value of a class 0 and an occurrence probability value of a class 1 from the magnitude relation between gkupper and gklower. Hence, it can be identified which one of the classes 0 and 1 is applicable to observed data D1 with a simple arithmetic processing. Accordingly, a complicated and heavy-burden arithmetic processing of an exponential function can be avoided for obtaining the occurrence probability values of the classes 0 and 1, enabling the processing burden to be significantly reduced.Type: GrantFiled: January 16, 2009Date of Patent: November 27, 2012Assignee: Niigata UniversityInventors: Shogo Muramatsu, Hidenori Watanabe
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Publication number: 20100287133Abstract: There are provided an identification device, an identification method and an identification processing program, which are capable of significantly reducing a processing burden. An identification device 1 can judge the magnitude relation between an occurrence probability value of a class 0 and an occurrence probability value of a class 1 from the magnitude relation between gkupper and gklower. Hence, it can be identified which one of the classes 0 and 1 is applicable to observed data D1 with a simple arithmetic processing. Accordingly, a complicated and heavy-burden arithmetic processing of an exponential function can be avoided for obtaining the occurrence probability values of the classes 0 and 1, enabling the processing burden to be significantly reduced.Type: ApplicationFiled: January 16, 2009Publication date: November 11, 2010Applicant: Niigata UniversityInventors: Shogo Muramatsu, Hidenori Watanabe
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Patent number: 7652700Abstract: To achieve more appropriate interpolation of a missing pixel, an image is input to a processing section for interpolation. The interpolation is applied utilizing image data of pixels located around the pixel to be interpolated. Specifically, correlations between the image data of the pixels to be interpolated, and pixel data in a horizontal direction, vertical direction, and diagonal direction, are compared to one another; pixel data having stronger correlation is used for the interpolation. Correlation between the image data of the pixels to be interpolated and which direction is strong is determined, so that different weighting for interpolation is used accordingly.Type: GrantFiled: July 27, 2005Date of Patent: January 26, 2010Assignee: Eastman Kodak CompanyInventors: Yoshihisa Takahashi, Hisakazu Kikuchi, Shogo Muramatsu, Yoshito Abe, Naoki Mizutani
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Publication number: 20070247530Abstract: To achieve more appropriate interpolation of a missing pixel, an image is input to a processing section for interpolation. The interpolation is applied utilizing image data of pixels located around the pixel to be interpolated. Specifically, correlations between the image data of the pixels to be interpolated, and pixel data in a horizontal direction, vertical direction, and diagonal direction, are compared to one another; pixel data having stronger correlation is used for the interpolation. Correlation between the image data of the pixels to be interpolated and which direction is strong is determined, so that different weighting for interpolation is used accordingly.Type: ApplicationFiled: July 29, 2005Publication date: October 25, 2007Inventors: Yoshihisa Takahasi, Hisakazu Kikuchi, Shogo Muramatsu, Yoshito Abe, Naoki Mizutani
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Patent number: 6644172Abstract: A semi-spherical shoe 1 includes a semi-spherical surface 1A and a flat end face 1B. The semi-spherical surface 1A comprises a sliding contact region 1a which is disposed in sliding contact with a semi-spherical recess 2B formed in a piston 2, and a lead-in 1b which is located above the sliding contact region 1a or disposed toward a top (recess 1C) of the semi-spherical shoe. The lead-in 1b has a diameter D2 which is greater than the diameter D1 of the sliding contact region 1a, thereby allowing a clearance 8 to be produced between lead-in 1b and an opposing portion of the semi-spherical recess 2B in the piston 2. A reservoir of lubricant oil in a space 4 formed between the semi-spherical recess 2B and the recess 1C of the semi-spherical shoe 1 is introduced into the sliding contact region 1a through the clearance 8. A sliding system having an excellent sliding response over the prior art is provided.Type: GrantFiled: July 18, 2001Date of Patent: November 11, 2003Assignee: Taiho Kogyo Co., Ltd.Inventors: Seiichi Nakayama, Shogo Muramatsu, Akira Takenaka
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Patent number: 6626084Abstract: A semi-spherical shoe 1 includes an end face 1B which is disposed in sliding contact with a swash plate 3 and a semi-spherical surface 1A which is disposed in sliding contact with a semi-spherical recess 2A formed in a piston 2. A spherical recess 1C is formed in the top portion of the semi-spherical surface 1A to define a space 4 which serves as a reservoir of lubricant oil between the spherical recess 1C and the semi-spherical recess 2B. If the volume of the space 4 which serves as a reservoir of lubricant oil is increased, an accumulation of abraded power in the spherical recess 1C which forms the space can be prevented in a favorable manner.Type: GrantFiled: July 18, 2001Date of Patent: September 30, 2003Assignee: Taiho Kogyo Co., Ltd.Inventors: Seiichi Nakayama, Shogo Muramatsu, Akira Takenaka
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Patent number: 6532664Abstract: A method of manufacturing a shoe according to the present invention comprises a step of cutting a columnar raw material 1 to a given length to provide a disc-shaped raw material 2, a step of forming on one end face of the disc-shaped raw material a spherical sliding surface 10 which is to be disposed in sliding contact with a spherical surface on a piston, and a step of forming a thermal sprayed layer 6 on the other end face of the disc-shaped raw material by a rapid gas H.V.O.F. spraying process, the thermal sprayed layer serving as a flat plate-shaped sliding surface 9 which is to be disposed in sliding contact with a swash plate. A shoe which is provided with the thermal sprayed layer 6 exhibits an increased seizure resistance in comparison to a conventional shoe which is formed with a sintered layer, and can be manufactured inexpensively.Type: GrantFiled: November 28, 2000Date of Patent: March 18, 2003Assignee: Taiho Kogyo Co., Ltd.Inventors: Yoshiaki Kitagawa, Shogo Muramatsu, Masanori Akizuki, Hiroyuki Asano
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Publication number: 20020192487Abstract: In aluminum alloy which is required to have good sliding characteristics, excellent sliding characteristics are achieved by carrying out granulation while avoiding the formation of flakes from Si particles through thermally spraying an aluminum alloy containing Si in an amount of 12 to 60 % The aluminum alloy may contain 0.1 to 30% of Sn, in addition to Si.Type: ApplicationFiled: February 18, 2000Publication date: December 19, 2002Inventors: SHOGO MURAMATSU, SOO-MYUNG HONG
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Patent number: 6477938Abstract: A semi-spherical shoe 1 includes a semi-spherical surface 1A and an end face 1B. The semi-spherical surface 1A comprises a sliding contact region 1a which is disposed in sliding contact with a semi-spherical recess 2B formed in a piston 2, and non-sliding contact regions 1b, 1b′ which are not disposed in sliding contact with the semi-spherical recess 2B. The non-sliding contact regions 1b, 1b′ have a surface roughness greater than the surface roughness of the sliding contact region 1a. The non-sliding contact regions 1b, 1b′ function as a lead-in of a lubricant oil to the sliding contact region 1a. As a consequence, there is provided a semi-spherical shoe 1 having an excellent sliding response as compared with a conventional arrangement in which the semi-spherical surface 1A has a uniform surface roughness over the entire region thereof.Type: GrantFiled: July 18, 2001Date of Patent: November 12, 2002Assignee: Taiho Kogyo Co., Ltd.Inventors: Seiichi Nakayama, Shogo Muramatsu, Akira Takenaka
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Publication number: 20020134231Abstract: A semi-spherical shoe 1 has a convex semi-spherical surface 1A which is disposed in sliding contact with a semi-spherical recess 2A formed in a piston 2. The convex semi-spherical surface 1A is defined by a convex surface of a revolving body which is formed when an arc of a circle having a radius of R2 and having a center C offset from the axis L of the semispherical shoe in an direction orthogonal thereto is rotated about the axis L as a center of rotation. A lead-in 1G which is arcuate in section is formed toward the top of the convex semi-spherical surface 1A and maintains a clearance 7 with respect to the semi-spherical recess 2A. A lubricant oil which is stored in a space 4 is smoothly supplied onto a sliding surface 1F through the clearance 7. The invention provides a semi-spherical shoe 1 having a good sliding response and an increased length of useful life.Type: ApplicationFiled: October 19, 2001Publication date: September 26, 2002Inventors: Seiichi Nakayama, Yukihito Takehara, Shogo Muramatsu, Akira Takenaka
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Patent number: 6435047Abstract: A method of manufacturing a shoe including cutting a columnar raw material to a given length to provide a disc-shaped raw material, forming on one end face of the disc-shaped raw material a spherical sliding surface which is to be disposed in sliding contact with a spherical surface on a piston, and forming a thermal sprayed layer on the other end face of the disc-shaped raw material. The thermal sprayed layer serves as a flat plate-shaped sliding surface which is to be disposed in sliding contact with a swash plate. A shoe which is provided with the thermal sprayed layer exhibits an increased seizure resistance in comparison to a conventional shoe which is formed with a sintered layer, and can be manufactured inexpensively.Type: GrantFiled: March 26, 1999Date of Patent: August 20, 2002Assignee: Taiho Kogyo Co., Ltd.Inventors: Yoshiaki Kitagawa, Shogo Muramatsu, Masanori Akizuki, Hiroyuki Asano
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Patent number: 5573390Abstract: In order to prevent the cracking of a coating of sliding material, in which an electroless Ni-B plating coating layer is formed on the surface of aluminum alloy, an electroless Ni-P plating coating layer is provided on the aluminum alloy.Type: GrantFiled: January 27, 1995Date of Patent: November 12, 1996Assignees: Surtec Kariya Co., Ltd., Taiho Kogyo Co., LtdInventors: Katsuhiro Takeuchi, Shogo Muramatsu, Yoichiro Toyama, Hirokazu Kondo
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Patent number: 5143559Abstract: A boronized sliding material, which comprises a boronized layer formed on a steel substrate, characterized in that the steel substrate has a sorbitic structure or mixed, sorbitic and pearlite structure.Type: GrantFiled: January 17, 1991Date of Patent: September 1, 1992Assignee: Taiho Kogyo Co., Ltd.Inventors: Shogo Muramatsu, Tomotada Yasuda