Patents by Inventor Masahiro Kawashima
Masahiro Kawashima 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: 20240270946Abstract: Provided is a rubber composition for tire which can highly balance wet grip performance with fuel efficiency in a tire. The rubber composition for tire contains a rubber component, a resin component, and a filler, where the rubber component contains a diene-based rubber component A with a glass transition temperature of ?50° C. or lower that contains an isoprene skeleton rubber, and a diene-based rubber component B incompatible with the diene-based rubber component A that contains a butadiene skeleton rubber, a total styrene content in the diene-based rubber component B is 15% by mass or less, the resin component has a weight-average molecular weight (Mw) of 200 g/mol to 1600 g/mol, the content of the resin component is 1 to 45 parts by mass with respect to 100 parts by mass of the rubber component, and 0° C. tan ?/50° C. tan ? is 2.7 or more.Type: ApplicationFiled: March 31, 2022Publication date: August 15, 2024Applicant: BRIDGESTONE CORPORATIONInventor: Masahiro KAWASHIMA
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Publication number: 20240239997Abstract: A rubber composition for a tire able to improve tire wet gripping performance is provided. The rubber composition for a tire contains a diene rubber component A, a diene rubber component B, and a resin component C. A difference in SP values between the diene rubber component A and the diene rubber component B is 0.25 (cal/cm3)1/2 or more, and the resin component C has an SP value of 1.40 (cal/cm3)1/2 or less than that of the diene rubber component A. A mass ratio R (resin component C/diene rubber component A) of the resin component C to the diene rubber component A is 0.5 or more, and when loss tangent at frequency F (Hz) as measured by atomic force microscopy is tan ?F, a defined Formula (a) is satisfied when F?100.Type: ApplicationFiled: March 31, 2022Publication date: July 18, 2024Applicant: BRIDGESTONE CORPORATIONInventor: Masahiro KAWASHIMA
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Publication number: 20240239998Abstract: A rubber composition for a tire, comprises a rubber component, a resin component, and a filler, wherein: the rubber component contains a rubber having isoprene skeleton and a styrene-butadiene rubber, the styrene-butadiene rubber has a glass transition temperature equal to or higher than ?40° C.; a content of the resin component is in the range of >15 and <50 parts by mass with respect to 100 parts by mass of the rubber component; the resin component has been at least partially hydrogenated and a difference in SP value between the resin component and the isoprene skeleton rubber is ?1.40 (cal/cm3)1/2; and the rubber composition satisfies the formula shown below: a mass ratio of the resin component/the isoprene skeleton rubber is ?0.5.Type: ApplicationFiled: March 31, 2022Publication date: July 18, 2024Applicant: BRIDGESTONE CORPORATIONInventor: Masahiro KAWASHIMA
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Patent number: 11397881Abstract: An image processing apparatus is equipped with: an image data receiving unit that receives image data; and a print data generating unit that generates multiple value data as print data by performing a halftone process on the image data and converting the image data into at least three values. The print data generating unit administers a halftone process that includes a density fluctuation suppressing process that results in the print data always including a zero value except for a case in which all of the pixels that constitute the image data are converted into a maximum value.Type: GrantFiled: April 23, 2021Date of Patent: July 26, 2022Assignee: RISO KAGAKU CORPORATIONInventors: Kenji Shimomura, Masahiro Kawashima
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Publication number: 20210357713Abstract: An image processing apparatus is equipped with: an image data receiving unit that receives image data; and a print data generating unit that generates multiple value data as print data by performing a halftone process on the image data and converting the image data into at least three values. The print data generating unit administers a halftone process that includes a density fluctuation suppressing process that results in the print data always including a zero value except for a case in which all of the pixels that constitute the image data are converted into a maximum value.Type: ApplicationFiled: April 23, 2021Publication date: November 18, 2021Applicant: Riso Kagaku CorporationInventors: Kenji SHIMOMURA, Masahiro KAWASHIMA
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Patent number: 11003340Abstract: A display device includes a display part, a storage stores original image data of an original image, a detector detects a touch operation being performed on a screen of the display part, and outputs touch position information indicating a touch position, and a controller displays a base image by resizing the original image according to a display resolution of the display part on the display part. When the touch operation is detected, the controller determines an enlargement target area that is a part of area on the base image including a position corresponding to the touch position, resizes and cuts an area on the original image to generate a partial enlarged image in which the enlargement target area is enlarged, the area corresponding to the enlarged target area, and display the base image and the partial enlarged image which is displayed over a part of the base image.Type: GrantFiled: October 24, 2019Date of Patent: May 11, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masahiro Kawashima, Kenji Fujiune
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Publication number: 20200164686Abstract: An object of the present disclosure is to provide a pneumatic tire which exhibits a superior balance between satisfactory low-hysteresis loss properties and good steering stability. The present disclosure achieves the object by a pneumatic tire having a bead filler (7) in a bead portion (1) thereof, wherein: the bead filler (7) is composed of a thermosetting resin or a thermosetting elastomer having a Young's modulus in the range of 50 MPa to 300 MPa.Type: ApplicationFiled: January 30, 2020Publication date: May 28, 2020Applicant: Bridgestone CorporationInventors: Masahiro KAWASHIMA, Shunsuke TSUDA
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Publication number: 20200073538Abstract: A display device includes a display part, a storage stores original image data of an original image, a detector detects a touch operation being performed on a screen of the display part, and outputs touch position information indicating a touch position, and a controller displays a base image by resizing the original image according to a display resolution of the display part on the display part. When the touch operation is detected, the controller determines an enlargement target area that is a part of area on the base image including a position corresponding to the touch position, resizes and cuts an area on the original image to generate a partial enlarged image in which the enlargement target area is enlarged, the area corresponding to the enlarged target area, and display the base image and the partial enlarged image which is displayed over a part of the base image.Type: ApplicationFiled: October 24, 2019Publication date: March 5, 2020Inventors: Masahiro KAWASHIMA, Kenji FUJIUNE
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Publication number: 20200070578Abstract: The rubber composition of the present invention contains a rubber component and a short fibrous resin D1 having a ratio A/B of larger than 1, wherein A is a length of a cross section perpendicular to a long axis direction in a long diameter direction thereof and B is a length of the cross section perpendicular to the long axis direction in a short diameter direction thereof. A vulcanized rubber having a large water absorbing force can be obtained from the rubber composition. In addition, the present invention provides a vulcanized rubber having a water absorbing force, a tire having excellent on-ice performance, and a studless having excellent on-ice performance.Type: ApplicationFiled: November 6, 2019Publication date: March 5, 2020Applicant: Bridgestone CorporationInventor: Masahiro KAWASHIMA
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Publication number: 20190256690Abstract: Specific types of block interpolymers can aid in compatibilizing otherwise incompatible elastomers. Each block of the interpolymer is generally compatible, even miscible, with each of the elastomers. The composition includes a sufficient amount of the block interpolymer such that that the level of immiscibility of the composition is decreased, as evidenced by smaller domains of one elastomer in the other.Type: ApplicationFiled: June 8, 2017Publication date: August 22, 2019Applicant: Bridgestone CorporationInventors: Masahiro Kawashima, Mindaugas Rackaitis
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Patent number: 8977050Abstract: An image processing device performs image processing on image data obtained by receiving light emitted from a light source and then reflected from an object to be read with a light receiving element. The image processing device includes a determination unit configured to determine whether or not a color of each pixel in the image data belongs to a predetermined correction target color range and a correction unit configured to perform correction to reduce the density of a pixel of the color belonging to the correction target color range.Type: GrantFiled: December 12, 2012Date of Patent: March 10, 2015Assignee: Riso Kagaku CorporationInventors: Masahiro Kawashima, Mitsuharu Shiokawa
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Patent number: 8901206Abstract: The natural rubber of the present invention is natural rubber obtained by leaving standing for a prescribed period of time a hydrous coagulum obtained from a natural rubber latex to which a preservative is added and/or from a coagulum of a natural rubber latex to which a preservative is added and drying it. The natural rubber coagulum is inhibited from being changed in a molecular weight even in a standing step (aging) in a high moisture condition, whereby the natural rubber having stable mechanical properties is obtained. An isothiazoline base compound is used for the preservative. Further, a rubber composition containing the natural rubber is prepared, and a tire is produced by using the rubber composition.Type: GrantFiled: February 3, 2012Date of Patent: December 2, 2014Assignee: Bridgestone CorporationInventor: Masahiro Kawashima
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Publication number: 20130303686Abstract: The natural rubber of the present invention is natural rubber obtained by leaving standing for a prescribed period of time a hydrous coagulum obtained from a natural rubber latex to which a preservative is added and/or from a coagulum of a natural rubber latex to which a preservative is added and drying it. The natural rubber coagulum is inhibited from being changed in a molecular weight even in a standing step (aging) in a high moisture condition, whereby the natural rubber having stable mechanical properties is obtained. An isothiazoline base compound is used for the preservative. Further, a rubber composition containing the natural rubber is prepared, and a tire is produced by using the rubber composition.Type: ApplicationFiled: February 3, 2012Publication date: November 14, 2013Applicant: BRIDGESTONE CORPORATIONInventor: Masahiro Kawashima
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Patent number: 8542246Abstract: A color conversion device generates color data in a second color gamut based on first converted color data and input color data, which are obtained from input color data in a first color gamut, and outputs the color data in the second color gamut. The color conversion device includes a first color mapping unit which generates the first converted color data by mapping the input color data into the second color gamut; a color mixing unit which generates color data by mixing the first converted color data and second converted color data at a ratio corresponding to the first color gamut and the second color gamut; and a color data output unit which outputs the color data.Type: GrantFiled: March 11, 2009Date of Patent: September 24, 2013Assignee: Panasonic CorporationInventors: Katsuo Saigo, Hiroshi Miyai, Hisakazu Hitomi, Masanobu Inoe, Masahiro Kawashima, Akihiro Takeuchi
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Patent number: 8537422Abstract: An input of image data is received, and information of width and/or thickness of a recording medium, which receives an image representing the image data to be recorded thereon, is received. Then, a preset pressing pressure value, which is used when the image is recorded on the recording medium, is obtained based on the information of width and/or thickness, and information of image density in the reference area, which is a part of the image data, is obtained. Then, converted image density information is obtained by converting the information of image density in the reference area based on the pressing pressure value and the information of image density, and image data is generated according to the thus obtained converted image density information.Type: GrantFiled: August 13, 2010Date of Patent: September 17, 2013Assignee: Riso Kagaku CorporationInventors: Junichi Hakamada, Yoshiyuki Okada, Masahiro Kawashima
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Patent number: 8311326Abstract: A histogram preparer reads image data scanned from an original sheet by the line, preparing a histogram of pixel numbers of respective background densities of a read line, a background density estimator estimates a background density of the read line as a density at a local maximal value in view of a highlight end of the histogram, a background removal reference value setter sets up a background removal reference value as a reference margin based on a pixel number normalized on the estimated background density, a background removal threshold determiner increments the estimated background density by the background removal reference value to set a provisional background removal threshold of the read line, and determines a background removal threshold of the read line as a weighting combination of the provisional background removal threshold and a background removal threshold of a previous line, and a background remover removes a background of the read line based on the determined background removal threshold.Type: GrantFiled: July 29, 2009Date of Patent: November 13, 2012Assignee: Riso Kagaku CorporationInventor: Masahiro Kawashima
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Publication number: 20120262556Abstract: The instant application describes a method for detecting crosstalk on a display surface compartmentalized into display regions by image patterns that are contained in an input image signal to a display device. The method includes steps of: displaying a first image and a second image on a display surface, the first image including first pattern images having main regions depicted with different brightness from each other and the second image including second pattern images having the main regions and sub regions depicted with different brightness from the main regions; taking an image of the display surface to obtain image data; and comparing at least one of the first and second images with the image data to detect the crosstalk. The first and second pattern images are displayed in a center region at a center of the display surface and adjacent regions adjacent to the center region.Type: ApplicationFiled: June 25, 2012Publication date: October 18, 2012Inventors: Yasuhiro KUWAHARA, Masahiro Kawashima, Hiroshi Miyai
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Publication number: 20110082246Abstract: A pressure-sensitive adhesive containing a near infrared absorbing dye having excellent shielding function for near infrared rays and excellent in durability is provided. In a light resistance test, a layer of the pressure-sensitive adhesive having a thickness of 25±5 ?m has an absorption intensity at the maximum absorption wavelength of the near infrared absorbing dye after a light resistance test of 50% or more of the absorption intensity before the test in which light with an irradiance of 64.5 W/m2 at a wavelength of 300 to 400 nm is irradiated on the layer for 160 hours.Type: ApplicationFiled: September 30, 2010Publication date: April 7, 2011Applicant: API CORPORATIONInventors: Wataru SATO, Kumiko Okamoto, Yasuyo Saito, Masahiro Kawashima, Takeshi Kaneda
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Patent number: 7902282Abstract: A pressure-sensitive adhesive containing a near infrared absorbing dye having excellent shielding function for near infrared rays and excellent in durability is provided. In a light resistance test, a layer of the pressure-sensitive adhesive having a thickness of 25±5 ?m has an absorption intensity at the maximum absorption wavelength of the near infrared absorbing dye after a light resistance test of 50% or more of the absorption intensity before the test in which light with an irradiance of 64.5 W/m2 at a wavelength of 300 to 400 nm is irradiated on the layer for 160 hours.Type: GrantFiled: April 28, 2006Date of Patent: March 8, 2011Assignee: API CorporationInventors: Wataru Sato, Kumiko Okamoto, Yasuyo Saito, Masahiro Kawashima, Takeshi Kaneda
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Publication number: 20110036251Abstract: An input of image data is received, and information of width and/or thickness of a recording medium, which receives an image representing the image data to be recorded thereon, is received. Then, a preset pressing pressure value, which is used when the image is recorded on the recording medium, is obtained based on the information of width and/or thickness, and information of image density in the reference area, which is a part of the image data, is obtained. Then, converted image density information is obtained by converting the information of image density in the reference area based on the pressing pressure value and the information of image density, and image data is generated according to the thus obtained converted image density information.Type: ApplicationFiled: August 13, 2010Publication date: February 17, 2011Applicant: RISO KAGAKU CORPORATIONInventors: Junichi HAKAMADA, Yoshiyuki OKADA, Masahiro KAWASHIMA