Patents by Inventor Toshiaki Watanabe
Toshiaki Watanabe 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: 11952423Abstract: A novel antibody that can be used as an anti-tumor agent and an anti-tumor agent that comprises, as an active ingredient, a molecule containing such an antibody.Type: GrantFiled: May 16, 2023Date of Patent: April 9, 2024Assignees: MIE UNIVERSITY, DAIICHI SANKYO COMPANY, LIMITEDInventors: Hiroshi Shiku, Yasushi Akahori, Kento Tanaka, Ayaka Yatsu, Junya Ichikawa, Toshiaki Ohtsuka, Shiho Kozuma, Ryuji Hashimoto, Makiko Nakayama, Naoya Shinozaki, Kensuke Nakamura, Ichiro Watanabe, Shinji Furuzono
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Publication number: 20240099143Abstract: There is provided a piezoelectric stack including: a substrate (1); a bottom electrode film (2) on the substrate; a piezoelectric film (3) on the bottom electrode film, having a planar area smaller than a planar area of the bottom electrode film; a top electrode film (4) on the piezoelectric film; and an insulating film (5) provided from the top electrode film to the bottom electrode film and covering at least a part of a side surface of the piezoelectric film, wherein the insulating film has a slope (9a) filling a step between a top surface of the top electrode film and a top surface of the bottom electrode film, and the slope has a shape alleviating the step.Type: ApplicationFiled: January 12, 2022Publication date: March 21, 2024Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Toshiaki KURODA, Kenji SHIBATA, Kazutoshi WATANABE, Takeshi KIMURA
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Patent number: 11805977Abstract: An endoscope system includes a processor configured to generate a clock at predetermined timing, a light source apparatus configured to irradiate white light and excitation light in a time division manner in synchronization with the clock, and an endoscope configured to perform image pickup based on irradiation timing of the light source apparatus. The processor generates a first white light image at a first clock, generates a first fluorescent image at a second clock, generates a second white light image at a third clock, and generates a third white light image at a fourth clock and superimposes the second white light image and the first fluorescent image at the fourth clock and superimposes the third white light image and the first fluorescent image at a fifth clock.Type: GrantFiled: June 22, 2020Date of Patent: November 7, 2023Assignee: OLYMPUS CORPORATIONInventors: Masakazu Mizoguchi, Toshiaki Watanabe, Satoshi Takekoshi, Susumu Aono
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Publication number: 20230327485Abstract: Provided is a power transmission device that has a simple structure and suppresses magnetic field leakage from a power transmission coil while suppressing excessive increase in the outer shape and the weight of the power transmission device. A power transmission device 1 includes: a power transmission portion 2 including a power transmission coil 20 and a housing 3 made of metal and having a peripheral wall 30 surrounding the power transmission portion 2. A shielding portion 5 protruding inward of the peripheral wall 30 is integrated with, of the peripheral wall 30, a top end 30t located on a power reception coil 90 placement side.Type: ApplicationFiled: March 22, 2023Publication date: October 12, 2023Inventors: Toru KANTO, Minoru SHIBATA, Shin-ichiro MATSUZAWA, Toshiaki WATANABE
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Publication number: 20230250554Abstract: In a bismuth-substituted rare earth iron garnet single crystal film production method, the bismuth-substituted rare earth iron garnet single crystal film expressed by the composition formula (Ln3-aBia)(Fe5-bAb)O12 is grown using a substrate of paramagnetic garnet with a lattice constant of Ls. The method includes forming a buffer layer with an average lattice constant of Lb (where Lb > Ls) on the surface of the substrate with a thickness of 5 to 30 µm, and growing a target bismuth-substituted rare earth iron garnet crystal film with an average lattice constant of Lf (where Lf > Lb) with a thickness of 100 µm or more overlaid on the buffer layer. The rate of lattice constant change in the buffer layer is steeper than the rate of lattice constant change in the bismuth-substituted rare earth iron garnet crystal film.Type: ApplicationFiled: March 26, 2021Publication date: August 10, 2023Inventors: Toshiaki WATANABE, Satoru FUKUDA
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Patent number: 11719860Abstract: An antireflection structure includes an antireflection film provided on a front surface of a substrate. The antireflection film has a plurality of holes that are spatially and periodically arranged and pass through front and back surfaces of the antireflection film. A thickness and a relative dielectric constant of the antireflection film are set according to a relative dielectric constant and a thickness of the substrate and an incident angle ? of an electromagnetic wave. The thickness and the relative dielectric constant of the antireflection film are set for an electromagnetic wave incident at the angle ? so that, for example, an electromagnetic wave reflected by the antireflection film provided on the front surface of the substrate and an electromagnetic wave reflected by a back surface of the substrate deviate from each other by a half wavelength and cancel each other.Type: GrantFiled: May 11, 2020Date of Patent: August 8, 2023Assignee: DENSO CORPORATIONInventors: Yoshihiro Abe, Toshiaki Watanabe, Shinichiro Matsuzawa
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Publication number: 20230212783Abstract: A bismuth-substituted rare earth iron garnet single crystal suitable for Faraday rotators and optical isolators with reduced insertion loss due to suppressed valence fluctuation of Fe ions is provided. The bismuth-substituted rare earth iron garnet single crystal of the present invention is characterized by the composition formula (TbaLnbBicMg3?(a+b+c))(FedGaeTifPt5?(d+e+f))O12. In the composition formula above, 0.02?f?0.05, 0.02?{3?(a+b+c)}?0.08, and ?0.01?{3?(a+b+c)}?{f+5?(d+e+f)}?0.01. Ln is a rare earth element and may be selected from Eu, Gd, Ho, Tm, Yb, Lu, and Y.Type: ApplicationFiled: December 18, 2020Publication date: July 6, 2023Inventors: Toshiaki WATANABE, Satoru FUKUDA
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Patent number: 11693264Abstract: A Faraday rotator and an optical isolator having a high transmittance and a high Verdet constant are provided. The optical isolator includes at least a Faraday rotator that rotates a polarization plane of incident light in a non-reciprocal manner, a polarizer disposed on a light incident side of the Faraday rotator, and an analyzer disposed on a light exit side of the Faraday rotator. The Faraday rotator is made of an oxide containing ytterbium oxide (Yb2O3), and is manufactured by a ceramic manufacturing process, wherein the oxide is allowed to contain an oxide of a metal other than ytterbium, and the proportion of ytterbium in all metal atoms in the oxide is 80% or more.Type: GrantFiled: November 15, 2019Date of Patent: July 4, 2023Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventor: Toshiaki Watanabe
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Publication number: 20230194902Abstract: A bismuth-substituted rare earth iron garnet single crystal suitable for Faraday rotators and optical isolators with reduced insertion loss due to suppressed valence fluctuation of Fe ions is provided. The bismuth-substituted rare earth iron garnet single crystal of the present invention is characterized by the composition formula (GdaLnbBicMg3?(a+b+c))(FedGaeTifPt5?(d+e+f))O12. In the composition formula above, 0.02?f?0.05, 0.02?{3?(a+b+c)}?0.08, and ?0.01?{3?(a+b+c)}?{f+5?(d+e+f)}?0.01. Ln is a rare earth element and may be selected from Eu, Dy, Gd, Ho, Tm, Yb, Lu, and Y.Type: ApplicationFiled: December 18, 2020Publication date: June 22, 2023Inventors: Toshiaki WATANABE, Satoru FUKUDA
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Patent number: 11409144Abstract: An optical isolator includes: an optical isolator chip in which a first polarizer, a Faraday rotator made of a ferromagnet, and a second polarizer are bonded and fixed in this order; and a magnet for applying a magnetic field to the optical isolator chip. A light-entering end surface or a light-exiting end surface of the optical isolator chip is bonded and fixed to a component. On an optical axis of the optical isolator, a center of a magnetic flux formed by the magnet is positioned closer to the end surface side bonded and fixed to the component than a central position of the Faraday rotator on the optical axis. The optical isolator has high bonding reliability to the component.Type: GrantFiled: March 31, 2017Date of Patent: August 9, 2022Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventor: Toshiaki Watanabe
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Patent number: 11247453Abstract: There are provided a liquid ejecting head and a liquid-ejecting recording apparatus in which it is possible to improve convenience. According to an embodiment of the present disclosure, a liquid ejecting head includes an ejecting section including a plurality of nozzles for ejecting liquid, a driving circuit that drives the ejecting section based on a printing driving signal to eject the liquid from the nozzles, a power supply path connected to the driving circuit, a detection section that acquires measurement data based on a detection result of a current flowing on the power supply path, and an arithmetic operation section that performs both an inspection of a state of the ejecting section based on the measurement data obtained by the detection section and acquisition of a parameter for ejection of the liquid.Type: GrantFiled: February 26, 2020Date of Patent: February 15, 2022Assignee: SII PRINTEK INC.Inventors: Kensuke Yoshida, Toshiaki Watanabe
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Patent number: 11173707Abstract: An embodiment of the present disclosure is a driving circuit for ejecting liquid from a plurality of nozzles in an ejecting section in a liquid ejecting head. The driving circuit includes a first signal generation section that generates a printing driving signal for ejecting the liquid from the nozzles, a second signal generation section that generates an inspection driving signal for inspecting a state of the ejecting section, and a control section that controls the first signal generation section and the second signal generation section so as to exclusively output one of the printing driving signal and the inspection driving signal to the ejecting section.Type: GrantFiled: February 21, 2020Date of Patent: November 16, 2021Assignee: SII Printek Inc.Inventors: Toshiaki Watanabe, Kensuke Yoshida
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Patent number: 11160442Abstract: An endoscope apparatus includes a spectroscopic section disposed on an optical axis of return light from an object irradiated with visible light, first excitation light and second excitation light including a longer wavelength than a wavelength of the first excitation light and configured to separate and emit the light of a second wavelength band other than light of a first wavelength band, a first excitation light cut filter configured to block a wavelength band of one of the first excitation light and the second excitation light included in the return light, and a second excitation light cut filter configured to block a wavelength band of another excitation light of the first excitation light and the second excitation light and a wavelength band of the visible light.Type: GrantFiled: March 15, 2018Date of Patent: November 2, 2021Assignee: OLYMPUS CORPORATIONInventors: Misa Tsuruta, Toshiaki Watanabe, Yuichi Takeuchi, Hiroki Uchiyama
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Patent number: 11143829Abstract: A light guide body for optical path and optical axis adjustment, the light guide body includes a silicon single crystal having an extinction ratio of 30 dB or more. The light guide body is a light guide body having one side surface alone joined and fixed to a base. An optical module including the light guide body installed at an installation angle adjusted for optical path and optical axis adjustment between components. An optical path and optical axis adjustment method including adjusting an installation angle of the light guide body to perform the optical path and optical axis adjustment between components. It is possible to provide the light guide body which does not adversely affect polarization characteristics and can easily perform the optical path and optical axis adjustment. It is possible to provide optical module and the optical path and optical axis adjustment method using such a light guide body.Type: GrantFiled: August 15, 2017Date of Patent: October 12, 2021Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventor: Toshiaki Watanabe
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Patent number: 10962813Abstract: The present invention provides an optical isolator module, including: a plurality of optical devices, each comprising a Faraday rotator and being configured to have an optical isolator function upon application of a magnetic field, a magnet to apply the magnetic field to the Faraday rotator in each of the plurality of optical devices, wherein at least two optical devices of the plurality of optical devices are configured to have the optical isolator functions in different directions from each other, and each magnetic field applied with the magnet is in the same direction. This provides an optical isolator module that can be prevented from degradation of the performance such as increase of insertion loss and degradation of isolation due to magnetic field interference even when a plurality of optical isolators are close to each other.Type: GrantFiled: May 7, 2018Date of Patent: March 30, 2021Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventor: Toshiaki Watanabe
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Patent number: 10951800Abstract: An endoscope system is provided with: a processor; a light source; and an image pickup device. The processor performs control for causing reflected light images corresponding to a predetermined period before start of the fluorescence occurrence period during the fluorescence non-occurrence period, among the reflected light images, to be recorded to the first storage medium; and, furthermore, performs control for causing the reflected light images to be recorded to the first storage medium during an after-end-of-fluorescence-occurrence period corresponding to a predetermined period with an end of the fluorescence occurrence period as a start point, and performs control for causing the reflected light images not to be recorded to the first storage medium during the fluorescence non-occurrence period after an end of the after-end-of-fluorescence-occurrence period.Type: GrantFiled: June 19, 2020Date of Patent: March 16, 2021Assignee: OLYMPUS CORPORATIONInventors: Susumu Aono, Toshiaki Watanabe, Satoshi Takekoshi, Masakazu Mizoguchi, Junichi Tashiro
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Publication number: 20200315439Abstract: An endoscope system includes a processor configured to generate a clock at predetermined timing, a light source apparatus configured to irradiate white light and excitation light in a time division manner in synchronization with the clock, and an endoscope configured to perform image pickup based on irradiation timing of the light source apparatus. The processor generates a first white light image at a first clock, generates a first fluorescent image at a second clock, generates a second white light image at a third clock, and generates a third white light image at a fourth clock and superimposes the second white light image and the first fluorescent image at the fourth clock and superimposes the third white light image and the first fluorescent image at a fifth clock.Type: ApplicationFiled: June 22, 2020Publication date: October 8, 2020Applicant: OLYMPUS CORPORATIONInventors: Masakazu MIZOGUCHI, Toshiaki WATANABE, Satoshi TAKEKOSHI, Susumu AONO
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Publication number: 20200322512Abstract: An endoscope system is provided with: a processor; a light source; and an image pickup device. The processor performs control for causing reflected light images corresponding to a predetermined period before start of the fluorescence occurrence period during the fluorescence non-occurrence period, among the reflected light images, to be recorded to the first storage medium; and, furthermore, performs control for causing the reflected light images to be recorded to the first storage medium during an after-end-of-fluorescence-occurrence period corresponding to a predetermined period with an end of the fluorescence occurrence period as a start point, and performs control for causing the reflected light images not to be recorded to the first storage medium during the fluorescence non-occurrence period after an end of the after-end-of-fluorescence-occurrence period.Type: ApplicationFiled: June 19, 2020Publication date: October 8, 2020Applicant: OLYMPUS CORPORATIONInventors: Susumu AONO, Toshiaki WATANABE, Satoshi TAKEKOSHI, Masakazu MIZOGUCHI, Junichi TASHIRO
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Publication number: 20200298557Abstract: There are provided a liquid ejecting head and a liquid-ejecting recording apparatus in which it is possible to improve convenience. According to an embodiment of the present disclosure, a liquid ejecting head includes an ejecting section including a plurality of nozzles for ejecting liquid, a driving circuit that drives the ejecting section based on a printing driving signal to eject the liquid from the nozzles, a power supply path connected to the driving circuit, a detection section that acquires measurement data based on a detection result of a current flowing on the power supply path, and an arithmetic operation section that performs both an inspection of a state of the ejecting section based on the measurement data obtained by the detection section and acquisition of a parameter for ejection of the liquid.Type: ApplicationFiled: February 26, 2020Publication date: September 24, 2020Inventors: Kensuke YOSHIDA, Toshiaki WATANABE
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Publication number: 20200269569Abstract: An embodiment of the present disclosure is a driving circuit for ejecting liquid from a plurality of nozzles in an ejecting section in a liquid ejecting head. The driving circuit includes a first signal generation section that generates a printing driving signal for ejecting the liquid from the nozzles, a second signal generation section that generates an inspection driving signal for inspecting a state of the ejecting section, and a control section that controls the first signal generation section and the second signal generation section so as to exclusively output one of the printing driving signal and the inspection driving signal to the ejecting section.Type: ApplicationFiled: February 21, 2020Publication date: August 27, 2020Inventors: Toshiaki WATANABE, Kensuke Yoshida