Patents by Inventor Tatsuo Nishimoto
Tatsuo Nishimoto 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: 8506857Abstract: An injection compression molding method of a lens is provided, where a toggle link mechanism (65) is actuated to close a molding die (50) and a movable die plate (64) is moved to a position establishing a cavity thickness of greater than a thickness of an article to be molded while the die is closed. After injecting a molten resin into the cavity, the molten resin is sealed in the cavity and the toggle link mechanism (65) is actuated to advance the movable die plate (64) toward a fixed die plate (61), the relative position of a rear die plate (62) and the movable die plate (64) is made constant at a position where extension of a tie bar (63) becomes a predetermined value, and the molten resin is cooled for a predetermined time after completion of pressurizing the resin.Type: GrantFiled: December 4, 2007Date of Patent: August 13, 2013Assignee: Hoya CorporationInventors: Tatsuo Nishimoto, Kiyohiro Saito, Kenji Tanagawa, Tetsuya Uchida
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Patent number: 7694404Abstract: A device (20) for assembling a plastic-lens-forming casting mold includes a gasket clamping mechanism (22) which clamps a gasket (2) from its axial direction, a first mold push-in mechanism (23) which pushes in an upper mold (3) fitted in an upper open end of the gasket (2), and a second mold push-in mechanism (24) which pushes in a lower mold (4) fitted in a lower open end of the gasket (2). The gasket clamping mechanism (22) clamps the gasket (2) from the axial direction by a gasket-pressing ring (34) and lower mold ring (35). The first mold push-in mechanism (23) pushes the upper mold (3) into the gasket (2) by a gasket push-in member (58). The second mold push-in mechanism (24) includes a plurality of push pins (68) and pushes up the lower mold (4) to push it into the gasket (2).Type: GrantFiled: November 2, 2007Date of Patent: April 13, 2010Assignee: Hoya CorporationInventors: Tatsuo Nishimoto, Akira Hamanaka, Nobuhiko Takeda
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Publication number: 20080116597Abstract: An injection compression molding method of a lens is provided, where a toggle link mechanism (65) is actuated to close a molding die (50) and a movable die plate (64) is moved to a position establishing a cavity thickness of greater than a thickness of an article to be molded while the die is closed. After injecting a molten resin into the cavity, the molten resin is sealed in the cavity and the toggle link mechanism (65) is actuated to advance the movable die plate (64) toward a fixed die plate (61), the relative position of a rear die plate (62) and the movable die plate (64) is made constant at a position where extension of a tie bar (63) becomes a predetermined value, and the molten resin is cooled for a predetermined time after completion of pressurizing the resin.Type: ApplicationFiled: December 4, 2007Publication date: May 22, 2008Applicant: HOYA CORPORATIONInventors: Tatsuo Nishimoto, Kiyohiro Saito, Kenji Tanagawa, Tetsuya Uchida
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Publication number: 20080118594Abstract: An injection compression molding method of a lens is provided, where a toggle link mechanism (65) is actuated to close a molding die (50) and a movable die plate (64) is moved to a position establishing a cavity thickness of greater than a thickness of an article to be molded while the die is closed. After injecting a molten resin into the cavity, the molten resin is sealed in the cavity and the toggle link mechanism (65) is actuated to advance the movable die plate (64) toward a fixed die plate (61), the relative position of a rear die plate (62) and the movable die plate (64) is made constant at a position where extension of a tie bar (63) becomes a predetermined value, and the molten resin is cooled for a predetermined time after completion of pressurizing the resin.Type: ApplicationFiled: December 4, 2007Publication date: May 22, 2008Applicant: HOYA CORPORATIONInventors: Tatsuo Nishimoto, Kiyohiro Saito, Kenji Tanagawa, Tetsuya Uchida
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Publication number: 20080093756Abstract: An injection compression molding method of a lens is provided, where a toggle link mechanism (65) is actuated to close a molding die (50) and a movable die plate (64) is moved to a position establishing a cavity thickness of greater than a thickness of an article to be molded while the die is closed. After injecting a molten resin into the cavity, the molten resin is sealed in the cavity and the toggle link mechanism (65) is actuated to advance the movable die plate (64) toward a fixed die plate (61), the relative position of a rear die plate (62) and the movable die plate (64) is made constant at a position where extension of a tie bar (63) becomes a predetermined value, and the molten resin is cooled for a predetermined time after completion of pressurizing the resin.Type: ApplicationFiled: December 4, 2007Publication date: April 24, 2008Applicant: HOYA CORPORATIONInventors: Tatsuo Nishimoto, Kiyohiro Saito, Kenji Tanagawa, Tetsuya Uchida
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Publication number: 20080073803Abstract: A device (20) for assembling a plastic-lens-forming casting mold includes a gasket clamping mechanism (22) which clamps a gasket (2) from its axial direction, a first mold push-in mechanism (23) which pushes in an upper mold (3) fitted in an upper open end of the gasket (2), and a second mold push-in mechanism (24) which pushes in a lower mold (4) fitted in a lower open end of the gasket (2). The gasket clamping mechanism (22) clamps the gasket (2) from the axial direction by a gasket-pressing ring (34) and lower mold ring (35). The first mold push-in mechanism (23) pushes the upper mold (3) into the gasket (2) by a gasket push-in member (58). The second mold push-in mechanism (24) includes a plurality of push pins (68) and pushes up the lower mold (4) to push it into the gasket (2).Type: ApplicationFiled: November 2, 2007Publication date: March 27, 2008Inventors: Tatsuo Nishimoto, Akira Hamanaka, Nobuhiko Takeda
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Patent number: 7344370Abstract: A device (20) for assembling a plastic-lens-forming casting mold includes a gasket clamping mechanism (22) which clamps a gasket (2) from its axial direction, a first mold push-in mechanism (23) which pushes in an upper mold (3) fitted in an upper open end of the gasket (2), and a second mold push-in mechanism (24) which pushes in a lower mold (4) fitted in a lower open end of the gasket (2). The gasket clamping mechanism (22) clamps the gasket (2) from the axial direction by a gasket-pressing ring (34) and lower mold ring (35). The first mold push-in mechanism (23) pushes the upper mold (3) into the gasket (2) by a gasket push-in member (58). The second mold push-in mechanism (24) includes a plurality of push pins (68) and pushes up the lower mold (4) to push it into the gasket (2).Type: GrantFiled: December 22, 2003Date of Patent: March 18, 2008Assignee: Hoya CorporationInventors: Tatsuo Nishimoto, Akira Hamanaka, Nobuhiko Takeda
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Patent number: 7326375Abstract: An injection compression molding method of a lens is provided, where a toggle link mechanism (65) is actuated to close a molding die (50) and a movable die plate (64) is moved to a position establishing a cavity thickness of greater than a thickness of an article to be molded while the die is closed. After injecting a molten resin into the cavity, the molten resin is sealed in the cavity and the toggle link mechanism (65) is actuated to advance the movable die plate (64) toward a fixed die plate (61), the relative position of a rear die plate (62) and the movable die plate (64) is made constant at a position where extension of a tie bar (63) becomes a predetermined value, and the molten resin is cooled for a predetermined time after completion of pressurizing the resin.Type: GrantFiled: October 28, 2002Date of Patent: February 5, 2008Assignee: Hoya CorporationInventors: Tatsuo Nishimoto, Kiyohiro Saito, Kenji Tanagawa, Tetsuya Uchida
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Publication number: 20060151898Abstract: A device (20) for assembling a plastic-lens-forming casting mold includes a gasket clamping mechanism (22) which clamps a gasket (2) from its axial direction, a first mold push-in mechanism (23) which pushes in an upper mold (3) fitted in an upper open end of the gasket (2), and a second mold push-in mechanism (24) which pushes in a lower mold (4) fitted in a lower open end of the gasket (2). The gasket clamping mechanism (22) clamps the gasket (2) from the axial direction by a gasket-pressing ring (34) and lower mold ring (35). The first mold push-in mechanism (23) pushes the upper mold (3) into the gasket (2) by a gasket push-in member (58). The second mold push-in mechanism (24) includes a plurality of push pins (68) and pushes up the lower mold (4) to push it into the gasket (2).Type: ApplicationFiled: December 22, 2003Publication date: July 13, 2006Inventors: Tatsuo Nishimoto, Akira Hamanaka, Nobuhiko Takeda
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Patent number: 6984938Abstract: A metal vapor discharge lamp including an arc tube 1 that includes a container 10 and power transmission members 20a and 20b. The container 10, made of translucent ceramic, is divided into a main tube portion 11 and narrow tube portions 12a and 12b extending out from both ends of the main tube portion 11. The power transmission members 20a and 20b respectively include electrode pins 21a and 21b made of tungsten. Coils 22a and 22b made of tungsten are respectively wound around ends of electrode pins 21a and 21b, which are respectively joined with electrode supporting members 23a and 23b made of conductive cermet. Electrode length L1 is set to (0.041P+0.5) mm to (0.041P+8.0) mm, āPā representing a lamp power in watts. Alternatively, a narrow tube portion length L2 is set to (0.032P+3.5) mm to (0.032P+8.0) mm inclusive.Type: GrantFiled: August 14, 2003Date of Patent: January 10, 2006Assignee: Matsushita Electric Industrial Co., LTDInventors: Shunsuke Kakisaka, Tatsuo Nishimoto, Masanori Higashi, Mikio Miura, Hiroshi Enami, Yoshiharu Nishiura
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Patent number: 6767482Abstract: An injection compression molding method for injecting and compressing molten resin to obtain molding product using a molding die internally having a lens-forming cavity includes a pair of relatively movable inserts; a gate; a runner; and a sprue. The molten resin is injected and filled into the cavity and volume of the cavity is reduced by moving one insert toward the other insert after a time period prior to completion of injecting and filling the molten resin. At the time, a gate shut pin is protruded into the gate in synchronization with the movement of the insert to gradually close the opening of the gate. Accordingly, two demands, i.e. lower resistance in filling the cavity with the molten resin and shutting in the molten resin after the molten resin is packed in the cavity, can both be satisfied. This improves productivity and enables the production of mold products having highly accurate configuration and high quality.Type: GrantFiled: November 30, 2001Date of Patent: July 27, 2004Assignee: Hoya CorporationInventor: Tatsuo Nishimoto
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Publication number: 20040104677Abstract: A metal vapor discharge lamp including an arc tube 1 that includes a container 10 and power transmission members 20a and 20b. The container 10, made of translucent ceramic, is divided into a main tube portion 11 and narrow tube portions 12a and 12b extending out from both ends of the main tube portion 11. The power transmission members 20a and 20b respectively include electrode pins 21a and 21b made of tungsten. Coils 22a and 22b made of tungsten are respectively wound around ends of electrode pins 21a and 21b, which are respectively joined with electrode supporting members 23a and 23b made of conductive cermet. Electrode length L1 is set to (0.041P+0.5) mm to (0.041P+8.0) mm, “P” representing a lamp power in watts. Alternatively, a narrow tube portion length L2 is set to (0.032P+3.5) mm to (0.032P+8.0) mm inclusive.Type: ApplicationFiled: August 14, 2003Publication date: June 3, 2004Inventors: Shunsuke Kakisaka, Tatsuo Nishimoto, Masanori Higashi, Mikio Miura, Hiroshi Enami, Yoshiharu Nishiura
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Patent number: 6663506Abstract: A golf club which comprises a head which is less deformable by the heat in welding. Separate reinforcing members 12 and 13 are provided on inner surface of a front edge 8A of a crown shell 8. Thus, the front edge 8A side is thickened and then the upper edge 4A of the face shell 4 is joined to the front edge 8A of the crown shell 8, by welding. The front edge 8A of the crown shell 8 is formed with a plurality of projections 11 which are anchored by the upper edge 4A of the face shell 4. The front edge 8A of the crown shell 8 is thickened by adding the thickness of the reinforcing members 12,13 to the thickness of crown shell 8 itself. Thus, thermal deformation and the sinking of the front edge 8A at the time of welding can be prevented, thus enabling the upper edge 4A to be joined to the front edge 8A as designed.Type: GrantFiled: January 13, 2003Date of Patent: December 16, 2003Assignees: The Yokohama Rubber Co., Kabushiki kaisha Endo SeisakushoInventors: Tatsuo Nishimoto, Akira Katahira, Masaei Tsurumaki
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Publication number: 20030125131Abstract: A golf club which comprises a head which is less deformable by the heat in welding. Separate reinforcing members 12 and 13 are provided on inner surface of a front edge 8A of a crown shell 8. Thus, the front edge 8A side is thickened and then the upper edge 4A of the face shell 4 is joined to the front edge 8A of the crown shell 8, by welding. The front edge 8A of the crown shell 8 is formed with a plurality of projections 11 which are anchored by the upper edge 4A of the face shell 4. The front edge 8A of the crown shell 8 is thickened by adding the thickness of the reinforcing members 12,13 to the thickness of crown shell 8 itself. Thus, thermal deformation and the sinking of the front edge 8A at the time of welding can be prevented, thus enabling the upper edge 4A to be joined to the front edge 8A as designed.Type: ApplicationFiled: January 13, 2003Publication date: July 3, 2003Inventors: Tatsuo Nishimoto, Akira Katahira, Masaei Tsurumaki
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Publication number: 20030080448Abstract: An injection compression molding method of a lens is provided, where a toggle link mechanism (65) is actuated to close a molding die (50) and a movable die plate (64) is moved to a position establishing a cavity thickness of greater than a thickness of an article to be molded while the die is closed. After injecting a molten resin into the cavity, the molten resin is sealed in the cavity and the toggle link mechanism (65) is actuated to advance the movable die plate (64) toward a fixed die plate (61), the relative position of a rear die plate (62) and the movable die plate (64) is made constant at a position where extension of a tie bar (63) becomes a predetermined value, and the molten resin is cooled for a predetermined time after completion of pressurizing the resin.Type: ApplicationFiled: October 28, 2002Publication date: May 1, 2003Applicant: HOYA CORPORATIONInventors: Tatsuo Nishimoto, Kiyohiro Saito, Kenji Tanagawa, Tetsuya Uchida
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Publication number: 20020055396Abstract: A golf club which comprises a head which is less deformable by the heat in welding. Separate reinforcing members 12 and 13 are provided on inner surface of a front edge 8A of a crown shell 8. Thus, the front edge 8A side is thickened and then the upper edge 4A of the face shell 4 is joined to the front edge 8A of the crown shell 8, by welding. The front edge 8A of the crown shell 8 is formed with a plurality of projections 11 which are anchored by the upper edge 4A of the face shell 4. front edge 8A of the crown shell 8 is thickened by adding the thickness of the reinforcing members 12, 13 to the thickness of crown shell 8 itself. Thus, thermal deformation and the sinking of the front edge 8A at the time of welding can be prevented, thus enabling the upper edge 4A to be joined to the front edge 8A as designed.Type: ApplicationFiled: October 19, 2001Publication date: May 9, 2002Inventors: Tatsuo Nishimoto, Akira Katahira, Masaei Tsurumaki
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Publication number: 20020036360Abstract: An injection compression molding method for injecting and compressing molten resin to obtain molding product using a molding die internally having a lens-forming cavity includes a pair of relatively movable inserts; a gate; a runner; and a sprue. The molten resin is injected and filled into the cavity and volume of the cavity is reduced by moving one insert toward the other insert after a time period prior to completion of injecting and filling the molten resin. At the time, a gate shut pin is protruded into the gate in synchronization with the movement of the insert to gradually close the opening of the gate. Accordingly, two demands, i.e. lower resistance in filling the cavity with the molten resin and shutting in the molten resin after the molten resin is packed in the cavity, can both be satisfied. This improves productivity and enables the production of mold products having highly accurate configuration and high quality.Type: ApplicationFiled: November 30, 2001Publication date: March 28, 2002Applicant: Hoya CorporationInventor: Tatsuo Nishimoto
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Patent number: 5972252Abstract: In an injection compression molding method of a lens, in which a mold is closed to preserve a predetermined compressing margin in a cavity 3 for a lens, molten resin is injected and fed into the cavity 3 for the lens, and compressed for the aforementioned predetermined compressing margin before or after the injection and the feed of the molten resin is completed, the predetermined compressing margin (the degree of slightly opening S.sub.(-)) for producing a minus lens is molded is defined to be larger than the predetermined compressing margin (the degree of slightly opening S.sub.(+)) for producing a plus lens is molded. As a result, even when the minus lens is molded, the larger area of the cavity can be ensure and a flow property of the molten resin in the cavity is improved, so that the molten resin reached the inside of the cavity 3 flow through the central portion of the cavity 3 into the peripheral portion, with the result that the appearance of a weld mark in the central portion is avoided.Type: GrantFiled: December 3, 1996Date of Patent: October 26, 1999Assignee: Hoya CorporationInventors: Kiyohiro Saito, Tatsuo Nishimoto, Hiroshi Asami
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Patent number: 5855824Abstract: An upper die 1 of a movable die corresponding with a lower die 2 of a stationary die is composed of a die body 3 and a die fitting member 4, in which a back insert 29, a hydraulic cylinder 23 and a pressure receiving portion 30 as a holding member of an insert 20 forming a cavity 22 is abutted to the die fitting member 4 by being urged upward by a spring 32. After resin, fed into the cavity 22, is compressed with the insert 20 by lifting the die fitting member 4 down, when the die fitting member 4 is lifted up at the degree of slightly opening S, by lifting the insert 20 down to be relatively to the die fitting member 4 with an eject pin 34, a space A between a molding 44 and the insert 20 is to be smaller, and the molding 44 is pushed out by causing the eject pin 34 to lift the insert 20 down when the upper die 1 and the lower die 2 are separated.Type: GrantFiled: December 3, 1996Date of Patent: January 5, 1999Assignee: Hoya CorporationInventors: Kiyohiro Saito, Tatsuo Nishimoto
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Patent number: 5732819Abstract: A golf bag is provided at least on an upper region of an inner surface of a bag body with a member for guiding a shaft of a golf club when the golf club is drawn out of and inserted into the bag body.Type: GrantFiled: July 25, 1996Date of Patent: March 31, 1998Assignee: The Yokohama Rubber Co., Ltd.Inventors: Toshinori Nishimura, Tatsuo Nishimoto