Patents by Inventor Ken Kitamura
Ken Kitamura 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: 11942569Abstract: In various embodiments, degradation of epoxy within packages for ultraviolet light-emitting devices is reduced or substantially eliminated via package venting, prevention of transmission of ultraviolet light to one or more regions of epoxy utilized in the package, and/or utilization of packaging schemes that reduce or avoid utilization of epoxy and/or specific metals.Type: GrantFiled: January 31, 2018Date of Patent: March 26, 2024Assignee: CRYSTAL IS, INC.Inventors: Masato Toita, Satoshi Yamada, Ken Kitamura, Craig Moe, Amy Miller
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Patent number: 11656582Abstract: A radio wave watch includes: an exterior case; a dial plate disposed within the exterior case; a substrate disposed on a rear side of the dial plate within the exterior case; a first ground layer disposed on the substrate; an antenna that has a planar emitting electrode disposed between a center of the exterior case and an inner wall surface of the exterior case and opposed to the first ground layer, a planar short-circuit part electrically connecting an end part of the emitting electrode to the first ground layer, and a connecting part connecting the emitting electrode to a receiving circuit of the substrate; and a second ground layer disposed on an opposite side to the emission electrode side across the short-circuit part on the substrate and having a width equal to or greater than a width of the short-circuit part.Type: GrantFiled: September 18, 2018Date of Patent: May 23, 2023Assignee: CITIZEN WATCH CO., LTD.Inventors: Yoshiyasu Watanabe, Ken Kitamura, Shuji Naka, Akira Kato
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Patent number: 11515455Abstract: In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.Type: GrantFiled: October 29, 2020Date of Patent: November 29, 2022Assignee: CRYSTAL IS, INC.Inventors: Ken Kitamura, Masato Toita, Hironori Ishii, Yuting Wang, Leo J. Schowalter, Jianfeng Chen, James R. Grandusky
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Publication number: 20220364952Abstract: A medical lighting device according to the present invention includes a light source unit that emits light, an optical fiber that guides and emits the light having emitted from the light source unit and having entered inside the optical fiber, first and second detection units that are provided in the vicinity of an emission end including an emission end for the light of the optical fiber and detect the light in the optical fiber, and a control unit that determines, based on detection values of the light detected by the first and second detection units, normality/abnormality in the detection values of the respective detection units and outputs determined results.Type: ApplicationFiled: May 27, 2020Publication date: November 17, 2022Applicant: Sony Olympus Medical Solutions Inc.Inventor: Ken KITAMURA
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Patent number: 11262061Abstract: A storage case includes: a casing having an opening bottom and configured to internally store a functional unit electrically connected to perform a function; a power supply configured to supply power to the functional unit; a drive module including a drive board arranged on an upper surface or side surface of the casing and configured to drive the functional unit; a connector configured to electrically connect the power supply and the drive module; and a restriction member configured to restrict movement of the casing, wherein the drive board is arranged on a surface in a removal direction of the casing, and a connection/disconnection direction of the connector is different from the removal direction of the casing.Type: GrantFiled: January 15, 2021Date of Patent: March 1, 2022Assignee: SONY OLYMPUS MEDICAL SOLUTIONS INC.Inventor: Ken Kitamura
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Patent number: 11150612Abstract: A portable radio-controlled watch includes a watch glass, an antenna that is formed on a backside of a circumference of the watch glass so as to be along the circumference, a feeder electrode adjacent to the antenna, a receiving circuit, an antenna connecting line that is at least a part of a connection circuit connecting the feeder electrode with the receiving circuit, where the antenna connecting line is directly connected to a back surface of the feeder electrode and extends in a direction away from the watch glass, and a dielectric that is disposed below the antenna and covers at least a part of the antenna in a plan view.Type: GrantFiled: July 20, 2017Date of Patent: October 19, 2021Assignee: CITIZEN WATCH CO., LTD.Inventors: Shuji Naka, Ken Kitamura, Akira Kato, Yohsuke Noma
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Publication number: 20210278070Abstract: A storage case includes: a casing having an opening bottom and configured to internally store a functional unit electrically connected to perform a function; a power supply configured to supply power to the functional unit; a drive module including a drive board arranged on an upper surface or side surface of the casing and configured to drive the functional unit; a connector configured to electrically connect the power supply and the drive module; and a restriction member configured to restrict movement of the casing, wherein the drive board is arranged on a surface in a removal direction of the casing, and a connection/disconnection direction of the connector is different from the removal direction of the casing.Type: ApplicationFiled: January 15, 2021Publication date: September 9, 2021Applicant: Sony Olympus Medical Solutions Inc.Inventor: Ken KITAMURA
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Publication number: 20210111317Abstract: In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.Type: ApplicationFiled: October 29, 2020Publication date: April 15, 2021Inventors: Ken KITAMURA, Masato TOITA, Hironori ISHII, Yuting WANG, Leo J. SCHOWALTER, Jianfeng CHEN, James R. GRANDUSKY
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Patent number: 10854797Abstract: In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.Type: GrantFiled: May 24, 2019Date of Patent: December 1, 2020Assignee: CRYSTALIS, INC.Inventors: Ken Kitamura, Masato Toita, Hironori Ishii, Yuting Wang, Leo J. Schowalter, Jianfeng Chen, James R. Grandusky
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Publication number: 20200319605Abstract: A radio wave watch includes: an exterior case; a dial plate disposed within the exterior case; a substrate disposed on a rear side of the dial plate within the exterior case; a first ground layer disposed on the substrate; an antenna that has a planar emitting electrode disposed between a center of the exterior case and an inner wall surface of the exterior case and opposed to the first ground layer, a planar short-circuit part electrically connecting an end part of the emitting electrode to the first ground layer, and a connecting part connecting the emitting electrode to a receiving circuit of the substrate; and a second ground layer disposed on an opposite side to the emission electrode side across the short-circuit part on the substrate and having a width equal to or greater than a width of the short-circuit part.Type: ApplicationFiled: September 18, 2018Publication date: October 8, 2020Applicant: CITIZEN WATCH CO., LTD.Inventors: Yoshiyasu WATANABE, Ken KITAMURA, Shuji NAKA, Akira KATO
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Publication number: 20200301371Abstract: Provided is a portable radio-controlled watch including: an antenna electrode; a receiving circuit arranged on a circuit board; a pair of connection pins, each of which has one end contacting the antenna electrode, and which are arranged in parallel to each other; intermediate wiring, which is connected to another end of each of the pair of connection pins, and extends in a direction separating from a case body; and RF connection wiring, which connects the intermediate wiring and the receiving circuit to each other.Type: ApplicationFiled: March 16, 2017Publication date: September 24, 2020Inventors: Ken KITAMURA, Akira KATO, Shuji NAKA, Yohsuke NOMA
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Patent number: 10777706Abstract: In various embodiments, an electrochemical process is utilized to remove at least a portion of a substrate from multiple singulated or unsingulated electronic-device or optoelectronic-device dies. The dies may be attached to a submount for the removal process, and the dies may be immersed in or non-immersively contact an electrolyte during the removal process.Type: GrantFiled: October 16, 2018Date of Patent: September 15, 2020Assignee: CRYSTAL IS, INC.Inventors: Ken Kitamura, Jianfeng Chen, Leo J. Schowalter
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Patent number: 10615786Abstract: A comparator circuit according to the present disclosure includes a first switch section that selectively takes in a signal voltage, a second switch section that selectively takes in a control waveform, a differential amplifier including a non-inverted input end connected to each of output ends of the first switch section and the second switch section, a capacity section including one end connected to an inverted input end of the differential amplifier and the other end supplied with a reference voltage, and a third switch section that selectively short-circuits the inverted input end and an output end of the differential amplifier.Type: GrantFiled: December 21, 2018Date of Patent: April 7, 2020Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Takaaki Sugiyama, Masaki Yoshioka, Ken Kikuchi, Masaru Chibashi, Ken Kitamura
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Publication number: 20200089170Abstract: Provided is a highly sensitive radio-controlled watch which includes: a watch glass; a case into which the watch glass is fitted; a movement disposed inside the case; and an antenna body disposed between the watch glass and the movement, and also along an inner periphery of the case, the antenna body including: an antenna electrode; and an antenna base having a surface on which the antenna electrode is disposed, and the antenna base having a permittivity higher than a permittivity of other components around the antenna body.Type: ApplicationFiled: March 13, 2018Publication date: March 19, 2020Inventors: Ken KITAMURA, Shuji NAKA, Akira KATO, Yoshiyasu WATANABE
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Publication number: 20190348581Abstract: In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.Type: ApplicationFiled: May 24, 2019Publication date: November 14, 2019Inventors: Ken Kitamura, Masato Toita, Hironori Ishii, Yuting Wang, Leo J. Schowalter, Jianfeng Chen, James R. Grandusky
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Publication number: 20190265655Abstract: A portable radio-controlled watch includes a watch glass, an antenna that is formed on a backside of a circumference of the watch glass so as to be along the circumference, a feeder electrode adjacent to the antenna, a receiving circuit, an antenna connecting line that is at least a part of a connection circuit connecting the feeder electrode with the receiving circuit, where the antenna connecting line is directly connected to a back surface of the feeder electrode and extends in a direction away from the watch glass, and a dielectric that is disposed below the antenna and covers at least a part of the antenna in a plan view.Type: ApplicationFiled: July 20, 2017Publication date: August 29, 2019Inventors: Shuji NAKA, Ken KITAMURA, Akira KATO, Yohsuke NOMA
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Patent number: 10383963Abstract: In various embodiments, an illumination device features an ultraviolet (UV) light-emitting device at least partially surrounded by an encapsulant. A barrier layer is disposed between the light-emitting device and the encapsulant and is configured to substantially prevent UV light emitted by the light-emitting device from entering the encapsulant.Type: GrantFiled: December 8, 2016Date of Patent: August 20, 2019Assignee: CRYSTAL IS, INC.Inventors: Masato Toita, Jianfeng Chen, Yuxin Li, Yuting Wang, Hironori Ishii, Ken Kitamura
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Patent number: 10347805Abstract: In various embodiments, a layer of organic encapsulant is provided over a surface of an ultraviolet (UV) light-emitting semiconductor die, and at least a portion of the encapsulant is exposed to UV light to convert at least some of said portion of the encapsulant into non-stoichiometric silica material. The non-stoichiometric silica material includes silicon, oxygen, and carbon, and a carbon content of the non-stoichiometric silica material is greater than 1 ppm and less than 40 atomic percent.Type: GrantFiled: February 16, 2018Date of Patent: July 9, 2019Assignee: CRYSTAL IS, INC.Inventors: Ken Kitamura, Masato Toita, Hironori Ishii, Yuting Wang, Leo J. Schowalter, Jianfeng Chen, James R. Grandusky
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Publication number: 20190123730Abstract: A comparator circuit according to the present disclosure includes: a first switch section that selectively takes in a signal voltage; a second switch section that selectively takes in a control waveform; a differential amplifier including a non-inverted input end connected to each of output ends of the first switch section and the second switch section; a capacity section including one end connected to an inverted input end of the differential amplifier and the other end supplied with a reference voltage; and a third switch section that selectively short-circuits the inverted input end and an output end of the differential amplifier.Type: ApplicationFiled: December 21, 2018Publication date: April 25, 2019Inventors: TAKAAKI SUGIYAMA, MASAKI YOSHIOKA, KEN KIKUCHI, MASARU CHIBASHI, KEN KITAMURA
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Publication number: 20190115501Abstract: In various embodiments, an electrochemical process is utilized to remove at least a portion of a substrate from multiple singulated or unsingulated electronic-device or optoelectronic-device dies. The dies may be attached to a submount for the removal process, and the dies may be immersed in or non-immersively contact an electrolyte during the removal process.Type: ApplicationFiled: October 16, 2018Publication date: April 18, 2019Inventors: Ken KITAMURA, Jianfeng CHEN, Leo J. SCHOWALTER