Patents by Inventor Tadashi Kosaka
Tadashi Kosaka 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).
-
Patent number: 11973312Abstract: A semiconductor laser device comprises a stem serving as a base; a laser diode LD submount having surface electrodes arranged thereon and joined to the surface of the stem; an LD chip joined to the surface electrode and connected with the surface electrode; and leads fixed in through holes formed in the stem by means of sealing parts and electrically connected to the surface electrodes via embedded layers in via holes formed in the LD submount, wherein grooves are formed in portions of the sealing parts or in portions of the LD submount around the connections between the leads and the embedded layers, to obtain a good modulated light waveform.Type: GrantFiled: July 2, 2019Date of Patent: April 30, 2024Assignee: Mitsubishi Electric CorporationInventors: Naoki Kosaka, Ayumi Fuchida, Masaaki Shimada, Go Sakaino, Tadashi Takase
-
Patent number: 10831235Abstract: Provided is an electronic device that suppresses an increase in internal pressure while suppressing entry of a foreign material. An electronic module according to the present embodiment has an electronic device, a substrate, a frame, and a cover, a hole portion having a first opening in a first main surface and a second opening in a second main surface and communicating the internal space and the external space, and a component is disposed to face the second opening.Type: GrantFiled: March 19, 2019Date of Patent: November 10, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Yu Katase, Tadashi Kosaka, Koichi Shimizu, Shuichi Chiba, Kazuya Notsu, Hisatane Komori, Satoru Hamasaki, Ikuto Kimura
-
Patent number: 10735673Abstract: According to the disclosure, a relationship of Tgp>Tgf, ?f1<?PCB1, and (Tgp?To)×?PCB1<(Tgf?To)×?f1+(Tgp?Tgf)×?f2 or a relationship of Tgp<Tgf, ?PCB1<?f1, and (Tgf?To)×?f1<(Tgp?To)×?PCB1+(Tgf?Tgp)×?PCB2 is satisfied, where linear expansion coefficients in an in-plane direction of the substrate at a temperature below a glass transition temperature Tgp of the substrate and at a temperature above the glass transition temperature Tgp of the substrate are denoted as ?PCB1 and ?PCB2, respectively, linear expansion coefficient of the frame at a temperature below a glass transition temperature Tgf of the frame and at a temperature above the glass transition temperature Tgf of the frame are denoted as ?f1 and ?f2, respectively, and a room temperature is denoted as To.Type: GrantFiled: April 19, 2019Date of Patent: August 4, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Koichi Shimizu, Tadashi Kosaka, Shuichi Chiba, Kazuya Notsu, Hisatane Komori, Satoru Hamasaki, Yu Katase
-
Publication number: 20190335119Abstract: According to the disclosure, a relationship of Tgp>Tgf, ?f1<?PCB1, and (Tgp-To) ×?PCB1<(Tgf-To)×?f1+(Tgp-Tgf)×?f2 or a relationship of Tgp<Tgf, ?PCB1<?f1, and (Tgf-To)×?f1<(Tgp-To)×?PCB1+(Tgf-Tgp)×?PCB2 is satisfied, where linear expansion coefficients in an in-plane direction of the substrate at a temperature below a glass transition temperature Tgp of the substrate and at a temperature above the glass transition temperature Tgp of the substrate are denoted as ?PCB1 and ?PCB2, respectively, linear expansion coefficient of the frame at a temperature below a glass transition temperature Tgf of the frame and at a temperature above the glass transition temperature Tgf of the frame are denoted as ?f1 and ?f2, respectively, and a room temperature is denoted as To.Type: ApplicationFiled: April 19, 2019Publication date: October 31, 2019Inventors: Koichi Shimizu, Tadashi Kosaka, Shuichi Chiba, Kazuya Notsu, Hisatane Komori, Satoru Hamasaki, Yu Katase
-
Publication number: 20190294213Abstract: Provided is an electronic device that suppresses an increase in internal pressure while suppressing entry of a foreign material. An electronic module according to the present embodiment has an electronic device, a substrate, a frame, and a cover, a hole portion having a first opening in a first main surface and a second opening in a second main surface and communicating the internal space and the external space, and a component is disposed to face the second opening.Type: ApplicationFiled: March 19, 2019Publication date: September 26, 2019Inventors: Yu Katase, Tadashi Kosaka, Koichi Shimizu, Shuichi Chiba, Kazuya Notsu, Hisatane Komori, Satoru Hamasaki, Ikuto Kimura
-
Patent number: 10319867Abstract: Provided is an electronic component including: a base member; an electronic device fixed on the base member; and a lid member arranged over the electronic device and fixed on the base member. A primary material of the lid member is a crystal quartz, the lid member has two primary faces opposing to the electronic device and four side faces, and each of the four side faces is a wet-etched face that is not parallel to an optical axis of the crystal quartz.Type: GrantFiled: March 7, 2018Date of Patent: June 11, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Yu Katase, Tadashi Kosaka, Koichi Shimizu, Shuichi Chiba, Kazuya Notsu, Yoshifumi Murakami
-
Patent number: 10115691Abstract: A module, comprising an electronic component having a first electrode, a mounting board having a second electrode, a solder-bump configured to connect the first electrode and the second electrode, and a thermoplastic resin member configured to contact both the first electrode and the second electrode and cover the solder-bump, so as to form a space between the electronic component and the mounting board.Type: GrantFiled: April 19, 2017Date of Patent: October 30, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Ichiro Kataoka, Takahiro Hachisu, Tadashi Kosaka
-
Publication number: 20180269336Abstract: Provided is an electronic component including: a base member; an electronic device fixed on the base member; and a lid member arranged over the electronic device and fixed on the base member. A primary material of the lid member is a crystal quartz, the lid member has two primary faces opposing to the electronic device and four side faces, and each of the four side faces is a wet-etched face that is not parallel to an optical axis of the crystal quartz.Type: ApplicationFiled: March 7, 2018Publication date: September 20, 2018Inventors: Yu Katase, Tadashi Kosaka, Koichi Shimizu, Shuichi Chiba, Kazuya Notsu, Yoshifumi Murakami
-
Patent number: 9978675Abstract: A package includes an insulating member, first electrically conductive members, and a second electrically conductive member. Each of the first electrically conductive members includes a first terminal portion that forms a part of a first surface, and a second terminal portion that is positioned on a side of a side surface with respect to the first terminal portion and forms a part of the side surface. The second electrically conductive member includes an embedded portion embedded in the insulating member, third terminal portions each of which forms a part of the first surface and is connected to the embedded portion, and a fourth terminal portion that forms a part of a second surface and is connected to the embedded portion.Type: GrantFiled: November 14, 2016Date of Patent: May 22, 2018Assignee: CANON KABUSHIKI KAISHAInventors: Takanori Suzuki, Fujio Ito, Tadashi Kosaka, Takao Toyooka, Koji Tsuduki, Yasushi Kurihara, Ikuto Kimura
-
Publication number: 20170330852Abstract: A module, comprising an electronic component having a first electrode, a mounting board having a second electrode, a solder-bump configured to connect the first electrode and the second electrode, and a thermoplastic resin member configured to contact both the first electrode and the second electrode and cover the solder-bump, so as to form a space between the electronic component and the mounting board.Type: ApplicationFiled: April 19, 2017Publication date: November 16, 2017Inventors: Ichiro Kataoka, Takahiro Hachisu, Tadashi Kosaka
-
Patent number: 9815133Abstract: A method includes applying solder pastes separately to first and second portions of the first member; bringing the solder paste applied to the first portion of the first member and a first portion of the second member into contact with each other, and bringing the solder paste applied to the second portion of the first member and a second portion of the second member into contact with other; and causing the solder paste brought into contact with the first portion of the second member and the solder paste brought into contact with the second portion of the second member to melt. In the melting, molten solder formed by melting the solder paste brought into contact with the first portion of the second member and molten solder formed by melting the solder paste brought into contact with the second portion of the second member are joined to each other.Type: GrantFiled: August 3, 2015Date of Patent: November 14, 2017Assignee: Canon Kabushiki KaishaInventors: Ichiro Kataoka, Hiroshi Kondo, Tadashi Kosaka, Koji Tsuduki, Hisatane Komori, Shin Hasegawa
-
Publication number: 20170150601Abstract: A package includes an insulating member, first electrically conductive members, and a second electrically conductive member. Each of the first electrically conductive members includes a first terminal portion that forms a part of a first surface, and a second terminal portion that is positioned on a side of a side surface with respect to the first terminal portion and forms a part of the side surface. The second electrically conductive member includes an embedded portion embedded in the insulating member, third terminal portions each of which forms a part of the first surface and is connected to the embedded portion, and a fourth terminal portion that forms a part of a second surface and is connected to the embedded portion.Type: ApplicationFiled: November 14, 2016Publication date: May 25, 2017Inventors: Takanori Suzuki, Fujio Ito, Tadashi Kosaka, Takao Toyooka, Koji Tsuduki, Yasushi Kurihara, Ikuto Kimura
-
Patent number: 9585287Abstract: An electronic component includes an electronic device and a container containing the electronic device. The container includes a base having a first region to which the electronic device is secured and a second region around the first region, a cover facing the electronic device across a space, and a frame secured to the second region to surround the space. The frame includes a first member and a second member having a thermal conductivity lower than those of the first member and the base. The first member has first and second portions on inner and outer edge sides of the frame, respectively, on both sides of an outer edge of the base. The second member is located between the cover and the first member. A shortest distance between the first member and the base is smaller than that between the first member and the cover.Type: GrantFiled: October 21, 2014Date of Patent: February 28, 2017Assignee: Canon Kabushiki KaishaInventors: Yu Katase, Fujio Ito, Tadashi Kosaka, Koji Tsuduki, Ichiro Kataoka
-
Publication number: 20160366774Abstract: An electronic component including an electronic device and a container accommodating the electronic device. The container includes a base portion including a first surface on which the electronic device is mounted and a second surface on an opposite side of the first surface, an opposing portion opposing the electronic device with a space in between, a frame portion surrounding the space between the base portion and the opposing portion, and a plurality of connecting portions that are positioned on the second surface and positioned in at least an orthographic projection area of the electronic device, the plurality of connecting portions being soldered to a wiring member. In the orthographic projection area of the electronic device, a thickness of the base portion in a central area is smaller than a thickness of the base portion in a peripheral area such that the second surface forms a concave surface.Type: ApplicationFiled: June 8, 2016Publication date: December 15, 2016Inventors: Shin Hasegawa, Fujio Ito, Takanori Suzuki, Takao Toyoka, Tadashi Kosaka, Yasushi Kurihara, Koji Tsuduki
-
Publication number: 20160044796Abstract: A method includes applying solder pastes separately to first and second portions of the first member; bringing the solder paste applied to the first portion of the first member and a first portion of the second member into contact with each other, and bringing the solder paste applied to the second portion of the first member and a second portion of the second member into contact with other; and causing the solder paste brought into contact with the first portion of the second member and the solder paste brought into contact with the second portion of the second member to melt. In the melting, molten solder formed by melting the solder paste brought into contact with the first portion of the second member and molten solder formed by melting the solder paste brought into contact with the second portion of the second member are joined to each other.Type: ApplicationFiled: August 3, 2015Publication date: February 11, 2016Inventors: Ichiro Kataoka, Hiroshi Kondo, Tadashi Kosaka, Koji Tsuduki, Hisatane Komori, Shin Hasegawa
-
Patent number: 9253922Abstract: A package includes a base body to which an electronic device is fixed, a lid body that faces the electronic device, and a frame body that encloses at least one of a space between the electronic device and the lid body, and the electronic device. The frame body has a first portion located at a side of an inner edge of the frame body with respect to an outer edge of the base body, and a second portion located at a side of an outer edge of the frame body with respect to the outer edge of the base body, in an X direction from the inner edge of the frame body toward the outer edge of the frame body.Type: GrantFiled: April 24, 2013Date of Patent: February 2, 2016Assignee: Canon Kabushiki KaishaInventors: Koji Tsuduki, Takanori Suzuki, Tadashi Kosaka, Yasuhiro Matsuki, Shin Hasegawa, Hisatane Komori, Yasushi Kurihara, Fujio Ito, Kazuya Notsu
-
Patent number: 9220172Abstract: A method of manufacturing an electronic component includes a first step of preparing a mounting member formed by bonding a peripheral region of a base body having an outer terminal connected with a wiring member, and a frame body, while heating the base body and the frame body; a second step of fixing the electronic device to the base body; and a third step of bonding the lid body and the frame body. A condition ?L, ?F, ?B<?C is satisfied, where ?L is a thermal expansion coefficient of the lid body, ?F is a thermal expansion coefficient of the frame body, ?B is a thermal expansion coefficient of the base body, and ?C is a thermal expansion coefficient of the wiring member.Type: GrantFiled: April 24, 2013Date of Patent: December 22, 2015Assignee: Canon Kabushiki KaishaInventors: Koji Tsuduki, Takanori Suzuki, Tadashi Kosaka, Yasuhiro Matsuki, Shin Hasegawa, Fujio Ito, Hisatane Komori, Yasushi Kurihara
-
Patent number: 9155212Abstract: A base body includes a fiducial stage part provided with an inner terminal group, and an upper stage part located at a side of an outer edge of a package with respect to the fiducial stage part and protruding with respect to the fiducial stage part through a step part. A frame body is bonded to the upper stage part, and an inner edge of the frame body is located at the side of the outer edge of the package with respect to the step part.Type: GrantFiled: April 24, 2013Date of Patent: October 6, 2015Assignee: Canon Kabushiki KaishaInventors: Koji Tsuduki, Takanori Suzuki, Tadashi Kosaka, Yasuhiro Matsuki, Shin Hasegawa, Fujio Ito, Hisatane Komori, Yasushi Kurihara
-
Publication number: 20150279770Abstract: A package for mounting a semiconductor element includes a substrate including an upper face having a region where a semiconductor element is mounted, a lower face positioned on a side opposite to the upper face, and a side face connecting the upper face and the lower face and an electrode formed on the side face to extend in a direction from the lower face to the upper face. A width of the electrode at a first height in the direction from the lower face to the upper face is smaller than that of the electrode at a second height closer to the upper face than the first height in the direction from the lower face to the upper face.Type: ApplicationFiled: March 16, 2015Publication date: October 1, 2015Inventors: Ichiro Kataoka, Tadashi Kosaka, Takanori Suzuki
-
Publication number: 20150116946Abstract: An electronic component includes an electronic device and a container containing the electronic device. The container includes a base having a first region to which the electronic device is secured and a second region around the first region, a cover facing the electronic device across a space, and a frame secured to the second region to surround the space. The frame includes a first member and a second member having a thermal conductivity lower than those of the first member and the base. The first member has first and second portions on inner and outer edge sides of the frame, respectively, on both sides of an outer edge of the base. The second member is located between the cover and the first member. A shortest distance between the first member and the base is smaller than that between the first member and the cover.Type: ApplicationFiled: October 21, 2014Publication date: April 30, 2015Inventors: Yu Katase, Fujio Ito, Tadashi Kosaka, Koji Tsuduki, Ichiro Kataoka