Patents by Inventor Masayuki Sukigara
Masayuki Sukigara 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: 20240134226Abstract: When at least one scope of 0.5 mm square or more of a surface of an optical sheet having the unevenness is measured, height data of each of a plurality of pixels of an image obtained is determined, an approximated surface is calculated, from the height data of each pixel, for a minute region of 100 ?m2 or less, and a calculation is repeatedly performed to obtain an inclination angle between: (i) a flat surface appearing after the unevenness is imaginarily removed and: (ii) the approximated surface, while two-dimensionally shifting the minute region at equal intervals along the flat surface by using at least one of the pixels as a unit to obtain a plurality of minute regions, a total area of some of the minute regions each having the inclination angle of 30° or more, accounts for 30% or more of a total area of all the minute regions.Type: ApplicationFiled: December 11, 2023Publication date: April 25, 2024Inventors: Chengheng TSAI, Motohiko OKABE, Takahiro TSUJI, Masayuki SUKIGARA
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Patent number: 11886075Abstract: When at least one scope of 0.5 mm square or more of a surface of an optical sheet having the unevenness is measured, height data of each of a plurality of pixels of an image obtained is determined, an approximated surface is calculated, from the height data of each pixel, for a minute region of 100 ?m2 or less, and a calculation is repeatedly performed to obtain an inclination angle between: (i) a flat surface appearing after the unevenness is imaginarily removed and: (ii) the approximated surface, while two-dimensionally shifting the minute region at equal intervals along the flat surface by using at least one of the pixels as a unit to obtain a plurality of minute regions, a total area of some of the minute regions each having the inclination angle of 30° or more, accounts for 30% or more of a total area of all the minute regions.Type: GrantFiled: May 13, 2022Date of Patent: January 30, 2024Assignee: KEIWA INCORPORATEDInventors: Chengheng Tsai, Motohiko Okabe, Takahiro Tsuji, Masayuki Sukigara
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Publication number: 20230400609Abstract: A light diffusion sheet 43 includes, at least in its first surface 43a, a plurality of recesses 22 formed in a substantially inverted polygon pyramid or in a substantially inverted truncated polygon pyramid. The ridge 23 parting the plurality of recesses 22 has a recessed shape between the intersections 23a, with respect to a straight line connecting the intersections 23a of the ridge 23. Where P is the arrangement pitch of the plurality of recesses 22 and Wr is the dimension occupied by a curved portion at the top portion of the ridge 23 in the arrangement direction of the plurality of recesses 22, a ratio Wr/P is 0.3 or less. The maximum height difference d between the ridge 23 and the straight line connecting the intersections 23a of the ridge 23 is 1 ?m or more and 10 ?m or less.Type: ApplicationFiled: September 1, 2023Publication date: December 14, 2023Inventors: Masayuki SUKIGARA, Akira FURUTA, Motohiko OKABE
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Publication number: 20220326571Abstract: When at least one scope of 0.5 mm square or more of a surface of an optical sheet having the unevenness is measured, height data of each of a plurality of pixels of an image obtained is determined, an approximated surface is calculated, from the height data of each pixel, for a minute region of 100 ?m2 or less, and a calculation is repeatedly performed to obtain an inclination angle between: (i) a flat surface appearing after the unevenness is imaginarily removed and: (ii) the approximated surface, while two-dimensionally shifting the minute region at equal intervals along the flat surface by using at least one of the pixels as a unit to obtain a plurality of minute regions, a total area of some of the minute regions each having the inclination angle of 30° or more, accounts for 30% or more of a total area of all the minute regions.Type: ApplicationFiled: May 13, 2022Publication date: October 13, 2022Inventors: Chengheng TSAI, Motohiko OKABE, Takahiro TSUJI, Masayuki SUKIGARA
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Patent number: 11360350Abstract: When at least one scope of 0.5 mm square or more of a surface of an optical sheet having the unevenness is measured, height data of each of a plurality of pixels of an image obtained is determined, an approximated surface is calculated, from the height data of each pixel, for a minute region of 100 ?m2 or less, and a calculation is repeatedly performed to obtain an inclination angle between: (i) a flat surface appearing after the unevenness is imaginarily removed and: (ii) the approximated surface, while two-dimensionally shifting the minute region at equal intervals along the flat surface by using at least one of the pixels as a unit to obtain a plurality of minute regions, a total area of some of the minute regions each having the inclination angle of 30° or more, accounts for 30% or more of a total area of all the minute regions.Type: GrantFiled: September 20, 2021Date of Patent: June 14, 2022Assignee: KEIWA INC.Inventors: Chengheng Tsai, Motohiko Okabe, Takahiro Tsuji, Masayuki Sukigara
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Publication number: 20220004058Abstract: When at least one scope of 0.5 mm square or more of a surface of an optical sheet having the unevenness is measured, height data of each of a plurality of pixels of an image obtained is determined, an approximated surface is calculated, from the height data of each pixel, for a minute region of 100 ?m2 or less, and a calculation is repeatedly performed to obtain an inclination angle between: (i) a flat surface appearing after the unevenness is imaginarily removed and: (ii) the approximated surface, while two-dimensionally shifting the minute region at equal intervals along the flat surface by using at least one of the pixels as a unit to obtain a plurality of minute regions, a total area of some of the minute regions each having the inclination angle of 30° or more, accounts for 30% or more of a total area of all the minute regions.Type: ApplicationFiled: September 20, 2021Publication date: January 6, 2022Inventors: Chengheng TSAI, Motohiko OKABE, Takahiro TSUJI, Masayuki SUKIGARA
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Patent number: 11150512Abstract: When at least one scope of 0.5 mm square or more of a surface of an optical sheet having the unevenness is measured, height data of each of a plurality of pixels of an image obtained is determined, an approximated surface is calculated, from the height data of each pixel, for a minute region of 100 ?m2 or less, and a calculation is repeatedly performed to obtain an inclination angle between: (i) a flat surface appearing after the unevenness is imaginarily removed and: (ii) the approximated surface, while two-dimensionally shifting the minute region at equal intervals along the flat surface by using at least one of the pixels as a unit to obtain a plurality of minute regions, a total area of some of the minute regions each having the inclination angle of 30° or more, accounts for 30% or more of a total area of all the minute regions.Type: GrantFiled: July 13, 2020Date of Patent: October 19, 2021Assignee: KEIWA Inc.Inventors: Chengheng Tsai, Motohiko Okabe, Takahiro Tsuji, Masayuki Sukigara
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Patent number: 11143914Abstract: A multilayer of light diffusers includes the light diffusers layered one on top of another, and an air layer between adjacent light diffusers. Each of the light diffusers contains a light diffusing agent in a resin matrix. An example of the resin matrix is an aromatic polycarbonate, and an example of the light diffusing agent is a silicone-based diffusing agent.Type: GrantFiled: November 27, 2019Date of Patent: October 12, 2021Assignee: KEIWA INC.Inventors: Chengheng Tsai, Masayuki Sukigara, Motohiko Okabe, Takahiro Tsuji
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Publication number: 20200341335Abstract: When at least one scope of 0.5 mm square or more of a surface of an optical sheet having the unevenness is measured, height data of each of a plurality of pixels of an image obtained is determined, an approximated surface is calculated, from the height data of each pixel, for a minute region of 100 ?m2 or less, and a calculation is repeatedly performed to obtain an inclination angle between: (i) a flat surface appearing after the unevenness is imaginarily removed and: (ii) the approximated surface, while two-dimensionally shifting the minute region at equal intervals along the flat surface by using at least one of the pixels as a unit to obtain a plurality of minute regions, a total area of some of the minute regions each having the inclination angle of 30° or more, accounts for 30% or more of a total area of all the minute regions.Type: ApplicationFiled: July 13, 2020Publication date: October 29, 2020Inventors: Chengheng TSAI, Motohiko OKABE, Takahiro TSUJI, Masayuki SUKIGARA
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Publication number: 20200292881Abstract: A multilayer of light diffusers includes the light diffusers layered one on top of another, and an air layer between adjacent light diffusers. Each of the light diffusers contains a light diffusing agent in a resin matrix. An example of the resin matrix is an aromatic polycarbonate, and an example of the light diffusing agent is a silicone-based diffusing agent.Type: ApplicationFiled: November 27, 2019Publication date: September 17, 2020Inventors: Chengheng TSAI, Masayuki SUKIGARA, Motohiko OKABE, Takahiro TSUJI
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Patent number: 7879440Abstract: A polylactic acid resin film or sheet which can be satisfactorily and stably formed and has excellent matte properties. It is a single-layer matte film or sheet which comprises a polylactic acid resin composition containing a particulate substance and at least one side of which has a surface gloss as measured in accordance with ASTM-D2457-70 (45° gloss) of 60% or lower.Type: GrantFiled: November 24, 2004Date of Patent: February 1, 2011Assignee: Asahi Kasei Life & Living CorporationInventors: Michihiro Yatsuzuka, Masayuki Sukigara, Mitsuyoshi Itada
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Patent number: 7820276Abstract: A single-layer matte film or sheet which comprises a filler and a biodegradable resin (A) comprising a blend of a biodegradable polyester (a1) having a glass transition temperature Tg of 10° C. or lower and a biodegradable polyester (a2) having a glass transition temperature Tg of 30° C. or higher, and in which at least one side thereof has a surface gloss (45-degree gloss) as measured in accordance with ASTM-D2457-70 of 60% or lower.Type: GrantFiled: January 6, 2006Date of Patent: October 26, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Masayuki Sukigara, Mitsuyoshi Itada, Michihiro Yatsuzuka
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Publication number: 20100219557Abstract: A biodegradable resin drawn film or biodegradable resin drawn sheet that is excellent in transparency, impact resistance and film re-forming capability (recyclability); and a process for producing the same. In particular, a biodegradable resin drawn film or biodegradable resin drawn sheet composed mainly of a mixture of (A) a biodegradable resin of greater than or equal to 30° C. as a glass transition temperature Tg and (B) a biodegradable resin of less than or equal to 5° C. as a glass transition temperature Tg characterized in that a multiplicity of domains comprising component (B) mainly in the configuration of lamellar or rod-shaped pieces are present in a continuous phase comprising component (A) substantially in parallel to the external surface of the film or sheet; and a process for producing the same.Type: ApplicationFiled: May 10, 2010Publication date: September 2, 2010Applicant: ASAHI KASEI LIFE & LIVING CORPORATIONInventors: Mitsuyoshi Itada, Masayuki Sukigara
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Publication number: 20080044650Abstract: A single-layer matte film or sheet which comprises a filler and a biodegradable resin (A) comprising a blend of a biodegradable polyester (a1) having a glass transition temperature Tg of 10° C. or lower and a biodegradable polyester (a2) having a glass transition temperature Tg of 30° C. or higher, and in which at least one side thereof has a surface gloss (45-degree gloss) as measured in accordance with ASTM-D2457-70 of 60% or lower.Type: ApplicationFiled: January 6, 2006Publication date: February 21, 2008Inventors: Masayuki Sukigara, Mitsuyoshi Itada, Michihiro Yatsuzuka
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Publication number: 20070160782Abstract: A polylactic acid resin film or sheet which can be satisfactorily and stably formed and has excellent matte properties. It is a single-layer matte film or sheet which comprises a polylactic acid resin composition containing a particulate substance and at least one side of which has a surface gloss as measured in accordance with ASTM-D2457-70 (45° gloss) of 60% or lower.Type: ApplicationFiled: November 24, 2004Publication date: July 12, 2007Inventors: Michihiro Yatsuzuka, Masayuki Sukigara, Mitsuyoshi Itada
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Patent number: 7175917Abstract: The present invention provides a biaxially oriented film of a polylactic acid resin that is suitable for films for bags and packaging films for various windows, particularly films for outlook window envelopes. The film is biodegradable and, as films for outlook window envelopes, is superior in the coating adaptability for an antistatic agent, a lubricant and an antiblocking agent or the like and in the high-speed cutting property. The present invention discloses a biaxially oriented film of a polylactic acid resin comprising not less than 50% by weight of a polylactic acid resin, which has a storage modulus E?at 80° C. within the range from 10 MPa to 3,000 MPa, as determined by the test method for temperature dependency of dynamic viscoelasticity, in accordance with JIS K7198 (method A); a heat shrinkage of not higher than 10%, upon heating at 80° C. for 10 seconds; and a tear strength in the width direction (TD direction) of the film of 10 to 200 mN, as determined in accordance with JIS K7128 (method B).Type: GrantFiled: October 29, 2002Date of Patent: February 13, 2007Assignee: Asahi Kasei Life & Living CorporationInventors: Masayuki Sukigara, Mitsuyoshi Itada, Hisao Koike, Michihiro Yatsuzuka, Yoshiaki Hamada
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Publication number: 20060257676Abstract: A biodegradable resin drawn film or biodegradable resin drawn sheet that is excellent in transparency, impact resistance and film re-forming capability (recyclability); and a process for producing the same. In particular, a biodegradable resin drawn film or biodegradable resin drawn sheet composed mainly of a mixture of (A) a biodegradable resin of greater than or equal to 30° C. as a glass transition temperature Tg and (B) a biodegradable resin of less than or equal to 5° C. as a glass transition temperature Tg characterized in that a multiplicity of domains comprising component (B) mainly in the configuration of lamellar or rod-shaped pieces are present in a continuous phase comprising component (A) substantially in parallel to the external surface of the film or sheet; and a process for producing the same.Type: ApplicationFiled: May 27, 2003Publication date: November 16, 2006Inventors: Mitsuyoshi Itada, Masayuki Sukigara
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Publication number: 20050008815Abstract: The present invention provides a biaxially oriented film of a polylactic acid resin that is suitable for films for bags and packaging films for various windows, particularly films for outlook window envelopes. The film is biodegradable and, as films for outlook window envelopes, is superior in the coating adaptability for an antistatic agent, a lubricant and an antiblocking agent or the like and in the high-speed cutting property. The present invention discloses a biaxially oriented film of a polylactic acid resin comprising not less than 50% by weight of a polylactic acid resin, which has a storage modulus E?at 80° C. within the range from 10 MPa to 3,000 MPa, as determined by the test method for temperature dependency of dynamic viscoelasticity, in accordance with JIS K7198 (method A); a heat shrinkage of not higher than 10%, upon heating at 80° C. for 10 seconds; and a tear strength in the width direction (TD direction) of the film of 10 to 200 mN, as determined in accordance with JIS K7128 (method B).Type: ApplicationFiled: October 29, 2002Publication date: January 13, 2005Inventors: Masayuki Sukigara, Mitsuyoshi Itada, Hisao Koike, Michihiro Yatsuzuka, Yoshiaki Hamada
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Patent number: 5776919Abstract: The present invention provides antimicrobial compositions, especially compositions comprising an antimicrobial (microbiocidal or microbiostatic) compound and a potentiator of antimicrobial activity. Compositions of the invention combining an antimicrobial compound and a potentiator are able to kill or inhibit the growth of microorganisms using much lower concentrations of the antimicrobial compound. The potentiator also enhances the efficacy of antimicrobial compounds against resistant strains of the microorganism.Type: GrantFiled: April 5, 1996Date of Patent: July 7, 1998Assignee: Asahi Kasai Kogyo Kabushiki KaishaInventors: Masayuki Sukigara, Isao Kubo
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Patent number: 5587358Abstract: The present invention provides antimicrobial compositions, especially compositions comprising an antimicrobial (microbiocidal or microbiostatic) compound and a potentiator of antimicrobial activity. Compositions of the invention combining an antimicrobial compound and a potentiator are able to kill or inhibit the growth of microorganisms using much lower concentrations of the antimicrobial compound. The potentiator also enhances the efficacy of antimicrobial compounds against resistant strains of the microorganism.Type: GrantFiled: May 9, 1994Date of Patent: December 24, 1996Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Masayuki Sukigara, Isao Kubo