Patents by Inventor Kikuo Iwasaka
Kikuo Iwasaka 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: 9867524Abstract: An optical fiber assembly includes optical fibers, an array member, an adhesive part, a cylindrical member and a fixing member. The fibers are inserted into the array member, and the array member is inserted into a cylindrical part of the cylindrical member. The adhesive part is disposed on one-end side of the array member. The fibers extend through the one end. The cylindrical part and the fixing member are fixed to each other in a state in which (i) the array member is sandwiched between a terminal part of the cylindrical member and the fixing member in an axial direction and (ii) the array member is positioned in the axial direction in relation to the cylindrical part. Thereby, the array member and the adhesive part are housed in a structure constituted of the cylindrical member and the fixing member.Type: GrantFiled: June 21, 2013Date of Patent: January 16, 2018Assignee: KONICA MINOLTA, INC.Inventors: Junichi Jono, Kikuo Iwasaka
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Patent number: 9709752Abstract: Provided is an optical connector plug of which housing is provided with: a first member that has at least a lower surface section that covers the lower side of a providing space in which an optical fiber and a ferrule are provided, a half of a back surface section from which the optical fiber is led out, and a half of a front surface section from which the ferrule is led out, and is composite-molded out of a thermoplastic resin; and a second member that has at least an upper surface section that covers the upper side of the providing space, the remaining half of the back surface section and the remaining half of the front surface section, and is composite-molded out of a thermoplastic resin into the same shape as the first member.Type: GrantFiled: May 17, 2012Date of Patent: July 18, 2017Assignee: Konica Minolta, Inc.Inventors: Atsushi Sawada, Kikuo Iwasaka, Yasuyuki Natsuno
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Patent number: 9188842Abstract: A manufacturing method of a lens barrel is disclosed. According to one implementation, the manufacturing method includes the following steps. A first lens holding section protrusion step inserts a first lens holding section from one end of a barrel frame to a hollow section to protrude from the other end. A second lens holding section suction step sucks a convex surface section. A first lens holding section contact step brings the planar surface section into contact with the first lens holding section. A lens holding switching step releases suction of the convex surface section, and the planar surface section is held by the first lens holding section. A barrel frame contact step moves the first lens holding section or the lens barrel so that a surrounding edge section is brought into contact with a lens receiving section.Type: GrantFiled: February 15, 2012Date of Patent: November 17, 2015Assignee: Konica Minolta, Inc.Inventors: Kikuo Iwasaka, Yuichi Atarashi
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Publication number: 20150148689Abstract: An optical fiber assembly includes optical fibers, an array member, an adhesive part, a cylindrical member and a fixing member. The fibers are inserted into the array member, and the array member is inserted into a cylindrical part of the cylindrical member. The adhesive part is disposed on one-end side of the array member. The fibers extend through the one end. The cylindrical part and the fixing member are fixed to each other in a state in which (i) the array member is sandwiched between a terminal part of the cylindrical member and the fixing member in an axial direction and (ii) the array member is positioned in the axial direction in relation to the cylindrical part. Thereby, the array member and the adhesive part are housed in a structure constituted of the cylindrical member and the fixing member.Type: ApplicationFiled: June 21, 2013Publication date: May 28, 2015Inventors: Junichi Jono, Kikuo Iwasaka
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Publication number: 20140114198Abstract: Provided is an optical connector plug of which housing is provided with: a first member that has at least a lower surface section that covers the lower side of a providing space in which an optical fiber and a ferrule are provided, a half of a back surface section from which the optical fiber is led out, and a half of a front surface section from which the ferrule is led out, and is composite-molded out of a thermoplastic resin; and a second member that has at least an upper surface section that covers the upper side of the providing space, the remaining half of the back surface section and the remaining half of the front surface section, and is composite-molded out of a thermoplastic resin into the same shape as the first member.Type: ApplicationFiled: May 17, 2012Publication date: April 24, 2014Applicant: Konica Minolta, Inc.Inventors: Atsushi Sawada, Kikuo Iwasaka, Yasuyuki Natsuno
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Publication number: 20130340234Abstract: A manufacturing method of a lens barrel is disclosed. According to one implementation, the manufacturing method includes the following steps. A first lens holding section protrusion step inserts a first lens holding section from one end of a barrel frame to a hollow section to protrude from the other end. A second lens holding section suction step sucks a convex surface section. A first lens holding section contact step brings the planar surface section into contact with the first lens holding section. A lens holding switching step releases suction of the convex surface section, and the planar surface section is held by the first lens holding section. A barrel frame contact step moves the first lens holding section or the lens barrel so that a surrounding edge section is brought into contact with a lens receiving section.Type: ApplicationFiled: February 15, 2012Publication date: December 26, 2013Inventors: Kikuo Iwasaka, Yuichi Atarashi
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Patent number: 8246536Abstract: A treatment tool insertion channel of an endoscope, which is arranged through an inside of an insertion part that includes a flexible tube and a bendable part, includes a flexible inner tube, a spiral groove formed around the flexible inner tube over an entire length of the bendable part and the flexible tube, at least one coil wound along a bottom of the spiral groove, and at least one type of filler with which the spiral groove is filled. The treatment tool insertion channel includes a first portion that includes a part inside the bendable part and a second portion at a proximal end side of the first portion, the first portion being configured more flexible than the second portion.Type: GrantFiled: April 24, 2007Date of Patent: August 21, 2012Assignee: Hoya CorporationInventors: Kunitaka Ochi, Yoshinori Fujii, Naoki Tanaka, Kikuo Iwasaka, Satoru Kaneda
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Patent number: 8100904Abstract: A treatment tool for an endoscope includes a flexible sheath, with a transparent portion near a distal end thereof, which is inserted into and ejected from a treatment tool insertion channel of the endoscope, a rod-shaped treatment piece arranged into the flexible sheath, an operation wire arranged inside the flexible sheath with a distal end thereof being connected with the rod-shaped treatment piece such that the rod-shaped treatment piece is projected back and forth from the distal end of the flexible sheath by operating the operation wire, and a mobile indicator formed at the rod-shaped treatment piece or a portion of the operation wire near the distal end thereof to move along with movement of the rod-shaped treatment piece and to be visually recognized through the transparent portion of the flexible sheath from an outside of the flexible sheath.Type: GrantFiled: October 31, 2007Date of Patent: January 24, 2012Assignee: Hoya CorporationInventors: Noriyuki Sugita, Kikuo Iwasaka
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Publication number: 20080114353Abstract: A treatment tool for an endoscope includes a flexible sheath, with a transparent portion near a distal end thereof, which is inserted into and ejected from a treatment tool insertion channel of the endoscope, a rod-shaped treatment piece arranged into the flexible sheath, an operation wire arranged inside the flexible sheath with a distal end thereof being connected with the rod-shaped treatment piece such that the rod-shaped treatment piece is projected back and forth from the distal end of the flexible sheath by operating the operation wire, and a mobile indicator formed at the rod-shaped treatment piece or a portion of the operation wire near the distal end thereof to move along with movement of the rod-shaped treatment piece and to be visually recognized through the transparent portion of the flexible sheath from an outside of the flexible sheath.Type: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Applicant: PENTAX CORPORATIONInventors: Noriyuki SUGITA, Kikuo IWASAKA
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Publication number: 20070255105Abstract: A treatment tool insertion channel of an endoscope, which is arranged through an inside of an insertion part that includes a flexible tube and a bendable part, includes a flexible inner tube, a spiral groove formed around the flexible inner tube over an entire length of the bendable part and the flexible tube, at least one coil wound along a bottom of the spiral groove, and at least one type of filler with which the spiral groove is filled. The treatment tool insertion channel includes a first portion that includes a part inside the bendable part and a second portion at a proximal end side of the first portion, the first portion being configured more flexible than the second portion.Type: ApplicationFiled: April 24, 2007Publication date: November 1, 2007Applicant: PENTAX CORPORATIONInventors: Kunitaka OCHI, Yoshinori FUJII, Naoki TANAKA, Kikuo IWASAKA, Satoru KANEDA
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Patent number: 7169105Abstract: A flexible tube for an endoscope has an elongated tubular core body, and an outer cover which is provided over the core body. The outer cover is composed of an inner layer, an outer layer and at least one intermediate layer. In this flexible tube, any one of the layers is different from one of the other layers in its property. Further, at least one of the layers has a thickness-varying region where the thickness of the layer varies in its longitudinal direction. In addition, the inner layer of the outer cover has projections which are integrally formed on the inner layer so that the projections project into holes and/or the recesses formed on the core body. This structure makes it possible to produce a flexible tube for an endoscope that has high durability, high flexibility and high chemical resistance as well as excellent operationability.Type: GrantFiled: April 13, 2004Date of Patent: January 30, 2007Assignee: PENTAX CorporationInventors: Kikuo Iwasaka, Tadashi Kasai, Hideo Nanba, Masaru Takeshige, Akira Sugiyama, Keiji Kunii, Masanao Abe
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Patent number: 6860849Abstract: A flexible tube for an endoscope has an elongated tubular core body, and an outer cover which is provided over the core body. The outer cover is composed of an inner layer, an outer layer and at least one intermediate layer. In this flexible tube, any one of the layers is different from one of the other layers in its property. Further, at least one of the layers has a thickness-varying region where the thickness of the layer varies in its longitudinal direction. In addition, the inner layer of the outer cover has projections which are integrally formed on the inner layer so that the projections project into holes and/or the recesses formed on the core body. This structure makes it possible to produce a flexible tube for an endoscope that has high durability, high flexibility and high chemical resistance as well as excellent operationability.Type: GrantFiled: May 4, 2001Date of Patent: March 1, 2005Assignee: PENTAX CorporationInventors: Minoru Matsushita, Kikuo Iwasaka, Tadashi Kasai, Hideo Nanba
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Publication number: 20040193013Abstract: A flexible tube for an endoscope has an elongated tubular core body, and an outer cover which is provided over the core body. The outer cover is composed of an inner layer, an outer layer and at least one intermediate layer. In this flexible tube, any one of the layers is different from one of the other layers in its property. Further, at least one of the layers has a thickness-varying region where the thickness of the layer varies in its longitudinal direction. In addition, the inner layer of the outer cover has projections which are integrally formed on the inner layer so that the projections project into holes and/or the recesses formed on the core body. This structure makes it possible to produce a flexible tube for an endoscope that has high durability, high flexibility and high chemical resistance as well as excellent operationability.Type: ApplicationFiled: April 13, 2004Publication date: September 30, 2004Applicant: PENTAX CorporationInventors: Kikuo Iwasaka, Tadashi Kasai, Hideo Nanba, Masaru Takeshige, Akira Sugiyama, Keiji Kunii, Masanao Abe
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Patent number: 6717092Abstract: A treatment instrument includes a first coil and a second coil that is different from said first coil. The first and second coils are connected to each other. An operation wire is inserted in the first and second coils, and a tip end of the wire is connected to a treatment device. Upon movement of the wire, the treatment device operates. A method of manufacturing such a treatment instrument includes inserting one end of the first coil and one end of the second coil in a connection pipe from opposite ends thereof, exposing both ends of the connection pipe and corresponding portions of the first and second coils. The portions exposed to the arc columns are melted and connected.Type: GrantFiled: August 8, 2001Date of Patent: April 6, 2004Assignee: PENTAX CorporationInventors: Yoshihiro Obata, Kikuo Iwasaka, Shinichi Matsuno, Hajime Yoshino, Akira Sugiyama, Hidehito Kurosawa, Shigeru Ogawa, Hideo Nanba
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Patent number: 6540669Abstract: An flexible tube for an endoscope having excellent resilience and durability is disclosed. The flexible tube is composed of a tubular core boy obtained by covering the outer periphery of a coil with a reticular tube of a braided thin wires and an outer cover formed of a synthetic resin and provided over the outer periphery of the tubular core boy. At least one of the thin wires has a coating layer and the flexible outer cover has a portion which is in contact with the coating layer of the thin wire of the reticular tube, in which the coating layer is formed of a material containing the material of the portion of the outer cover, and the material of the coating layer has a higher melting point than that of the material of the portion of the outer cover. The outer cover may be formed into a multi-layered structure including an inner layer, an intermediate layer and an outer layer.Type: GrantFiled: August 31, 2001Date of Patent: April 1, 2003Assignee: Pentax CorporationInventors: Masanao Abe, Shinji Hayakawa, Kikuo Iwasaka, Minoru Matsushita
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Patent number: 6520214Abstract: A flexible tube for an endoscope is provided with a spirally-wound tube, a braided tube covering the spirally-wound tube, and a sheath provided on the braided tube. The sheath material is fused and coated on the braided tube to form the sheath. When the sheath material is fused and applied on the braided tube, the sheath material passes through interstices of the braided tube, at the positions facing the clearances between windings, to form a plurality of protruded portions which protruded inward with respect to the braided tube.Type: GrantFiled: April 12, 2000Date of Patent: February 18, 2003Assignee: Pentax CorporationInventors: Akira Sugiyama, Tadashi Kasai, Masanao Abe, Minoru Matsushita, Hideo Nanba, Shinji Hayakawa, Kikuo Iwasaka, Naoya Ouchi, Kenichi Ohara, Tomoko Iwasaki
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Patent number: 6458075Abstract: An endoscopic flexible tube that allows for easy fabrication of a jacket of a multi-layered structure that is adequately protected against separation of overlying layers. Two adjacent layers in the multi-layered structure portion of the jacket are integrally combined via an area that comprises a mixture of the constituent materials of the two layers.Type: GrantFiled: April 26, 2000Date of Patent: October 1, 2002Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Akira Sugiyama, Kikuo Iwasaka, Masanao Abe, Minoru Matsushita
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Publication number: 20020045803Abstract: An flexible tube for an endoscope having excellent resilience and durability is disclosed. The flexible tube is composed of a tubular core boy obtained by covering the outer periphery of a coil with a reticular tube of a braided thin wires and an outer cover formed of a synthetic resin and provided over the outer periphery of the tubular core boy. At least one of the thin wires has a coating layer and the flexible outer cover has a portion which is in contact with the coating layer of the thin wire of the reticular tube, in which the coating layer is formed of a material containing the material of the portion of the outer cover, and the material of the coating layer has a higher melting point than that of the material of the portion of the outer cover. The outer cover may be formed into a multi-layered structure including an inner layer, an intermediate layer and an outer layer.Type: ApplicationFiled: August 31, 2001Publication date: April 18, 2002Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHAInventors: Masanao Abe, Shinji Hayakawa, Kikuo Iwasaka, Minoru Matsushita
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Publication number: 20020017515Abstract: A treatment instrument includes a first coil and a second coil that is different from said first coil. The first and second coils are connected to each other. An operation wire is inserted in the first and second coils, and a tip end of the wire is connected to a treatment device. Upon movement of the wire, the treatment device operates. A method of manufacturing such a treatment instrument includes inserting one end of the first coil and one end of the second coil in a connection pipe from opposite ends thereof, exposing both ends of the connection pipe and corresponding portions of the first and second coils. The portions exposed to the arc columns are melted and connected.Type: ApplicationFiled: August 8, 2001Publication date: February 14, 2002Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHAInventors: Yoshihiro Obata, Kikuo Iwasaka, Shinichi Matsuno, Hajime Yoshino, Akira Sugiyama, Hidehito Kurosawa, Shigeru Ogawa, Hideo Nanba
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Publication number: 20020010386Abstract: A flexible tube for an endoscope has an elongated tubular core body, and an outer cover which is provided over the core body. The outer cover is composed of an inner layer, an outer layer and at least one intermediate layer. In this flexible tube, any one of the layers is different from one of the other layers in its property. Further, at least one of the layers has a thickness-varying region where the thickness of the layer varies in its longitudinal direction. In addition, the inner layer of the outer cover has projections which are integrally formed on the inner layer so that the projections project into holes and/or the recesses formed on the core body. This structure makes it possible to produce a flexible tube for an endoscope that has high durability, high flexibility and high chemical resistance as well as excellent operationability.Type: ApplicationFiled: May 4, 2001Publication date: January 24, 2002Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHAInventors: Minoru Matsushita, Kikuo Iwasaka, Tadashi Kasai, Hideo Nanba, Masaru Takeshige, Akira Suiyama, Keiji Kunii, Masanao Abe