Patents by Inventor Toshiaki Hotaka
Toshiaki Hotaka 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: 20230333538Abstract: A process for forming an intermediate or final resin sheet by virtually segmenting a strip-like, extrusion-molded resin sheet into a plurality of individual areas corresponding to intermediate resin sheets. Each individual area is further virtually segmented into segmented areas. Shrinkage rate related information related to shrinkage rate of each segmented area is acquired for each segmented area. When implementing an intermediate processing, processing conditions are corrected for each individual area based on the shrinkage rate related information for each individual area and for each segmented area. The intermediate resin sheet may be heat press processed using heat press processing condition information.Type: ApplicationFiled: August 5, 2021Publication date: October 19, 2023Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TEIJIN LIMITEDInventors: Kazumasa OKUMURA, Toshiaki HOTAKA
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Publication number: 20230321886Abstract: A process management system virtually segments an extruded resin sheet into individual areas associated with several resin sheets. The individual areas are further virtually segmented into segmented areas. Curvature related information related to a curvature after completion of a heat press processing is acquired for each segmented area for each individual area. In a coating condition per area setting process, coating conditions are set for each segmented area for each individual area in accordance with a curvature based on curvature related information of each segmented area for each individual area. In a coating implementing process, a coating is applied to each segmented area for each individual area based on the coating condition.Type: ApplicationFiled: August 5, 2021Publication date: October 12, 2023Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TEIJIN LIMITEDInventors: Kazumasa OKUMURA, Toshiaki HOTAKA
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Patent number: 9321196Abstract: [PROBLEM] To provide a method of molding a composite molded article enabling compression molding without requiring a large sized injection molding machine and a mold system used for that. [MEANS FOR SOLUTION] A method of molding a composite molded article using a first mold member 13 to mold a primary molded article 29 by primary molding, switching a movable mold member 14 holding the primary molded article 29 with a movable mold member 14 positioned with a second mold member 15, then using a second mold member 15 in which the primary molded article 29 is inserted to mold a secondary molded article 30 by secondary molding, wherein the primary molding and the secondary molding are executed by non-continuous different steps at points of time different from each other.Type: GrantFiled: January 25, 2013Date of Patent: April 26, 2016Assignees: Kabushiki Kaisha Meikiseisakusho, Teijinkasei Kabushiki KaishaInventors: Kenji Fukumoto, Shizuo Jinno, Atsushi Tsukamoto, Toshiaki Hotaka, Fumitaka Kondo, Yasuhiro Sugihara, Kazuma Hisaki
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Patent number: 9296143Abstract: It is an object of the present invention to provide a process capable of manufacturing various types of curved members having a high-grade design surface which are used as glazing members for means of transport such as automobiles at a low cost. The present invention is the process of manufacturing a curved member having a high-grade design surface, comprises the steps of: (1) preparing a sheet having a high-grade design surface by injection compression molding a resin material containing a thermoplastic resin; (2) preheating the sheet at a temperature of (Tg+5)° C. to (Tg+70)° C. (Tg(° C.) is the glass transition temperature of the resin material) to soften it; and (3) applying pressure to the softened sheet to curve the high-grade design surface.Type: GrantFiled: October 15, 2010Date of Patent: March 29, 2016Assignee: TEIJIN CHEMICALS, LTD.Inventors: Keiichi Kashima, Takehiro Suga, Junichi Miura, Ryo Niimi, Toshiaki Hotaka
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Patent number: 8408890Abstract: [PROBLEM]To provide a method of molding a composite molded article enabling compression molding without requiring a large sized injection molding machine and a mold system used for that. [MEANS FOR SOLUTION]A method of molding a composite molded article using a first mold member 13 to mold a primary molded article 29 by primary molding, switching a movable mold member holding the primary molded article 29 with a movable mold member 14 positioned with a second mold member 15, then using a second mold member 15 in which the primary molded article 29 is inserted to mold a secondary molded article 30 by secondary molding, wherein the primary molding and the secondary molding are executed by non-continuous different steps at points of time different from each other.Type: GrantFiled: August 9, 2006Date of Patent: April 2, 2013Assignees: Kabushiki Kaisha Meikiseisakusho, Teijinkasei Kabushiki KaishaInventors: Kenji Fukumoto, Shizuo Jinno, Atsushi Tsukamoto, Toshiaki Hotaka, Fumitaka Kondo, Yasuhiro Sugihara, Kazuma Hisaki
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Publication number: 20120225241Abstract: It is an object of the present invention to provide a process capable of manufacturing various types of curved members having a high-grade design surface which are used as glazing members for means of transport such as automobiles at a low cost. The present invention is the process of manufacturing a curved member having a high-grade design surface, comprises the steps of: (1) preparing a sheet having a high-grade design surface by injection compression molding a resin material containing a thermoplastic resin; (2) preheating the sheet at a temperature of (Tg+5)° C. to (Tg+70)° C. (Tg(° C.) is the glass transition temperature of the resin material) to soften it; and (3) applying pressure to the softened sheet to curve the high-grade design surface.Type: ApplicationFiled: October 15, 2010Publication date: September 6, 2012Inventors: Keiichi Kashima, Takehiro Suga, Junichi Miura, Ryo Niimi, Toshiaki Hotaka
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Patent number: 8008371Abstract: A resin composition which provides a molded article capable of effectively blocking off heat rays from sunlight and having excellent transparency, color and moist heat resistance and a molded article thereof. The resin composition comprises (A) 100 parts by weight of a polycarbonate resin (component A), (B) 0.0001 to 0.05 part by weight of coated hexaboride particles, each composed of a hexaboride particle of at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sr and Ca and a coating layer (component B), and (C) 0.0001 to 0.05 part by weight of nitride particles (component C).Type: GrantFiled: December 14, 2007Date of Patent: August 30, 2011Assignee: Teijin Chemicals, Ltd.Inventors: Ryo Niimi, Takashi Oda, Akihiro Nitta, Toshiaki Hotaka
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Publication number: 20100019411Abstract: [Problem] To provide a method of molding a composite molded article enabling compression molding without requiring a large sized injection molding machine and a mold system used for that. [Means for Solution] A method of molding a composite molded article using a first mold member 13 to mold a primary molded article 29 by primary molding, switching a movable mold member holding the primary molded article 29 with a movable mold member 14 positioned with a second mold member 15, then using a second mold member 15 in which the primary molded article 29 is inserted to mold a secondary molded article 30 by secondary molding, wherein the primary molding and the secondary molding are executed by non-continuous different steps at points of time different from each other.Type: ApplicationFiled: August 9, 2006Publication date: January 28, 2010Applicant: KABUSHIKI KAISHA MEIKISEKSAKUSHOInventors: Kenji Fukumoto, Shizuo Jinno, Atsushi Tsukamoto, Toshiaki Hotaka, Fumitaka Kondo, Yasuhiro Sugihara, Kazuma Hisaki
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Publication number: 20100021709Abstract: A resin composition which provides a molded article capable of effectively blocking off heat rays from sunlight and having excellent transparency, color and moist heat resistance and a molded article thereof. The resin composition which comprises (A) 100 parts by weight of a polycarbonate resin (component A), (B) 0.0001 to 0.05 part by weight of coated hexaboride particles, each composed of a hexaboride particle of at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sr and Ca and a coating layer (component B), and (C) 0.0001 to 0.05 part by weight of nitride particles (component C).Type: ApplicationFiled: December 14, 2007Publication date: January 28, 2010Inventors: Ryo Niimi, Takashi Oda, Akihiro Nitta, Toshiaki Hotaka
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Patent number: 7591505Abstract: A window structure in which a metal frame is firmly bonded to a sheet material comprising an aromatic polycarbonate resin and which has wet heat resistance and a window member for the structure are provided. The sheet window member comprises: A: a sheet material (A) comprising an aromatic polycarbonate resin, B: a frame member (B) laminated along the periphery of one surface of the sheet material (A), and C: a rubber-like buffer layer (C) formed on the surface of the frame member (B), wherein the frame member (B) is formed from a resin composition comprising the following (i) to (iii): (i) 50 to 90 parts by weight of aromatic polycarbonate resin (B-1), (ii) 10 to 50 parts by weight of polyethylene terephthalate resin (B-2), and (iii) 0 to 50 parts by weight of fibrous filler (B-3) based on 100 parts by weight of the total of(B-1) and (B-2).Type: GrantFiled: May 10, 2004Date of Patent: September 22, 2009Assignee: Teijin Chemicals, Ltd.Inventors: Tomomitsu Onizawa, Toshiaki Hotaka
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Publication number: 20060131928Abstract: According to the present invention, a window structure in which a metal frame is firmly bonded to a sheet material comprising an aromatic polycarbonate resin and which has wet heat resistance and a window member for the structure are provided. The sheet window member comprises: A: a sheet material (A) comprising an aromatic polycarbonate resin, B: a frame member (B) laminated along the periphery of one surface of the sheet material (A), and C: a rubber-like buffer layer (C) formed on the surface of the frame member (B), wherein the frame member (B) is formed from a resin composition comprising the following (i) to (iii): (i) 50 to 90 parts by weight of aromatic polycarbonate resin (B-1), (ii) 10 to 50 parts by weight of polyethylene terephthalate resin (B-2), and (iii) 0 to 50 parts by weight of fibrous filler (B-3) based on 100 parts by weight of the total of the (B-1) and the (B-2). The window structure comprises a metal frame laminated on the rubber-like buffer layer (C) of the window member.Type: ApplicationFiled: May 10, 2004Publication date: June 22, 2006Inventors: Tomomitsu Onizawa, Toshiaki Hotaka
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Patent number: 7041247Abstract: In an injection compression-molding apparatus, a molded article is produced by setting molds 10 and 11 to an intermediate clamped state, and then by setting the molds 10 and 11 to a final clamped state by re-clamping the molds 10 and 11 to each other after injecting melted resin into a cavity defined by the molds 10 and 11. The apparatus includes a clamping mechanism and a parallelism retaining mechanism 20. The clamping mechanism has a mold-driving cylinder 7 for moving the movable mold 10 toward and away from the fixed mold 11, a guide engaging member 8, support panels 4, 5, etc. so as to selectively set the molds 10 and 11 to the intermediate clamped state and the final clamped state. The parallelism retaining mechanism 20 retains parallelism between the molds 10 and 11 in the intermediate clamped state by giving a corrective force to mold attaching surfaces of the clamping mechanism where the respective molds 10 and 11 are mounted.Type: GrantFiled: May 31, 2002Date of Patent: May 9, 2006Assignees: Kabushiki Kaisha Kobe Seiko Sho, Teijin Chemicals, Ltd.Inventors: Tsutomu Nagaoka, Toshiaki Hotaka
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Patent number: 6808804Abstract: A highly elaborately designed sheet-shaped laminated structure wherein: (1) the sheet-shaped laminated structure is a sheet-shaped laminated structure composed of at least two layers formed of a thermoplastic resin, (2) at least one outer layer forming a surface of said laminated structure is a layer (B) formed of a transparent resin, (3) at least one layer composing said laminated structure contains a dye, a pigment or a light-diffusing agent and has a monotonous thickness change at least in one direction of a sheet surface of the laminated structure, and (4) said laminated structure shows a continuous change in color tone along the sheet surface when visually observed toward an outer surface of the layer (B) formed of a transparent resin, and use thereof.Type: GrantFiled: April 16, 2002Date of Patent: October 26, 2004Assignee: Teijin Chemicals, Ltd.Inventors: Toshiaki Hotaka, Kazuma Hisaki, Ikkoh Furukawa
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Publication number: 20040012122Abstract: In an injection compression-molding apparatus, a molded article is produced by setting molds 10 and 11 to an intermediate clamped state, and then by setting the molds 10 and 11 to a final clamped state by re-clamping the molds 10 and 11 to each other after injecting melted resin into a cavity defined by the molds 10 and 11. The apparatus includes a clamping mechanism and a parallelism retaining mechanism 20. The clamping mechanism has a mold-driving cylinder 7 for moving the movable mold 10 toward and away from the fixed mold 11, a guide engaging member 8, support panels 4, 5, etc. so as to selectively set the molds 10 and 11 to the intermediate clamped state and the final clamped state. The parallelism retaining mechanism 20 retains parallelism between the molds 10 and 11 in the intermediate clamped state by giving a corrective force to mold attaching surfaces of the clamping mechanism where the respective molds 10 and 11 are mounted.Type: ApplicationFiled: March 21, 2003Publication date: January 22, 2004Inventors: Tsutomu Nagaoka, Toshiaki Hotaka
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Publication number: 20030021917Abstract: A highly elaborately designed sheet-shaped laminated structure wherein:Type: ApplicationFiled: April 16, 2002Publication date: January 30, 2003Inventors: Toshiaki Hotaka, Kazuma Hisaki, Ikkoh Furukawa