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).

  • Patent number: 11952423
    Abstract: 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: Grant
    Filed: May 16, 2023
    Date of Patent: April 9, 2024
    Assignees: MIE UNIVERSITY, DAIICHI SANKYO COMPANY, LIMITED
    Inventors: 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
  • Publication number: 20240099143
    Abstract: 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: Application
    Filed: January 12, 2022
    Publication date: March 21, 2024
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Toshiaki KURODA, Kenji SHIBATA, Kazutoshi WATANABE, Takeshi KIMURA
  • Patent number: 11805977
    Abstract: 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: Grant
    Filed: June 22, 2020
    Date of Patent: November 7, 2023
    Assignee: OLYMPUS CORPORATION
    Inventors: Masakazu Mizoguchi, Toshiaki Watanabe, Satoshi Takekoshi, Susumu Aono
  • Publication number: 20230327485
    Abstract: 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: Application
    Filed: March 22, 2023
    Publication date: October 12, 2023
    Inventors: Toru KANTO, Minoru SHIBATA, Shin-ichiro MATSUZAWA, Toshiaki WATANABE
  • Publication number: 20230250554
    Abstract: 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: Application
    Filed: March 26, 2021
    Publication date: August 10, 2023
    Inventors: Toshiaki WATANABE, Satoru FUKUDA
  • Patent number: 11719860
    Abstract: 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: Grant
    Filed: May 11, 2020
    Date of Patent: August 8, 2023
    Assignee: DENSO CORPORATION
    Inventors: Yoshihiro Abe, Toshiaki Watanabe, Shinichiro Matsuzawa
  • Publication number: 20230212783
    Abstract: 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: Application
    Filed: December 18, 2020
    Publication date: July 6, 2023
    Inventors: Toshiaki WATANABE, Satoru FUKUDA
  • Patent number: 11693264
    Abstract: 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: Grant
    Filed: November 15, 2019
    Date of Patent: July 4, 2023
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Toshiaki Watanabe
  • Publication number: 20230194902
    Abstract: 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: Application
    Filed: December 18, 2020
    Publication date: June 22, 2023
    Inventors: Toshiaki WATANABE, Satoru FUKUDA
  • Patent number: 11409144
    Abstract: 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: Grant
    Filed: March 31, 2017
    Date of Patent: August 9, 2022
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Toshiaki Watanabe
  • Patent number: 11247453
    Abstract: 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: Grant
    Filed: February 26, 2020
    Date of Patent: February 15, 2022
    Assignee: SII PRINTEK INC.
    Inventors: Kensuke Yoshida, Toshiaki Watanabe
  • Patent number: 11173707
    Abstract: 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: Grant
    Filed: February 21, 2020
    Date of Patent: November 16, 2021
    Assignee: SII Printek Inc.
    Inventors: Toshiaki Watanabe, Kensuke Yoshida
  • Patent number: 11160442
    Abstract: 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: Grant
    Filed: March 15, 2018
    Date of Patent: November 2, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Misa Tsuruta, Toshiaki Watanabe, Yuichi Takeuchi, Hiroki Uchiyama
  • Patent number: 11143829
    Abstract: 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: Grant
    Filed: August 15, 2017
    Date of Patent: October 12, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Toshiaki Watanabe
  • Patent number: 10962813
    Abstract: 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: Grant
    Filed: May 7, 2018
    Date of Patent: March 30, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Toshiaki Watanabe
  • Patent number: 10951800
    Abstract: 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: Grant
    Filed: June 19, 2020
    Date of Patent: March 16, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Susumu Aono, Toshiaki Watanabe, Satoshi Takekoshi, Masakazu Mizoguchi, Junichi Tashiro
  • Publication number: 20200315439
    Abstract: 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: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Masakazu MIZOGUCHI, Toshiaki WATANABE, Satoshi TAKEKOSHI, Susumu AONO
  • Publication number: 20200322512
    Abstract: 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: Application
    Filed: June 19, 2020
    Publication date: October 8, 2020
    Applicant: OLYMPUS CORPORATION
    Inventors: Susumu AONO, Toshiaki WATANABE, Satoshi TAKEKOSHI, Masakazu MIZOGUCHI, Junichi TASHIRO
  • Publication number: 20200298557
    Abstract: 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: Application
    Filed: February 26, 2020
    Publication date: September 24, 2020
    Inventors: Kensuke YOSHIDA, Toshiaki WATANABE
  • Publication number: 20200269569
    Abstract: 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: Application
    Filed: February 21, 2020
    Publication date: August 27, 2020
    Inventors: Toshiaki WATANABE, Kensuke Yoshida