Patents by Inventor Mao Izawa
Mao Izawa 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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Publication number: 20240109161Abstract: The present invention relates to a polishing apparatus and a polishing method for polishing a flat portion of a substrate, such as a wafer. The polishing apparatus (100) includes: a substrate holder configured to hold a substrate (W) and rotate the substrate W; a polishing-tape feeding mechanism (141) configured to advance a polishing tape (3) in its longitudinal direction; and at least one polishing head (10) arranged near a flat portion of the substrate (W), wherein the polishing head (10) has a fluid pressing structure (12) configured to press the polishing tape (3) with fluid against the flat portion of the substrate, and the fluid pressing structure (12) has a fluid supply port (13) arranged so as to face a back surface of the polishing tape (3).Type: ApplicationFiled: January 14, 2022Publication date: April 4, 2024Inventors: Satoru YAMAMOTO, Keisuke UCHIYAMA, Mao IZAWA, Makoto KASHIWAGI
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Patent number: 11949048Abstract: According to one embodiment, an illumination device comprises a first mounting board including a plurality of first light emitting elements, a second mounting board including a plurality of second light emitting elements, and a first wiring board including a first wiring line electrically connected to at least one of the plurality of first light emitting elements and the plurality of second light emitting elements. The first mounting board and the second mounting board extend in a first direction and are arranged along a second direction intersecting the first direction. The first wiring board is superposed on the first mounting board and the second mounting board. The first wiring board has rigidity that is lower than rigidity of each of the first mounting board and the second mounting board.Type: GrantFiled: March 25, 2021Date of Patent: April 2, 2024Assignee: Japan Display Inc.Inventors: Masaaki Takuma, Mao Izawa
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Patent number: 11804398Abstract: A workpiece supporting apparatus capable of preventing a surface of a workpiece from drying out while maintaining a suction force when supporting the workpiece with a Bernoulli chuck is disclosed. The workpiece supporting apparatus includes a Bernoulli chuck configured to generate a suction force by emitting a gas; and a liquid ejection member surrounding the Bernoulli chuck and configured to discharge a liquid around the Bernoulli chuck.Type: GrantFiled: August 18, 2021Date of Patent: October 31, 2023Assignee: EBARA CORPORATIONInventors: Makoto Kashiwagi, Mao Izawa
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Patent number: 11782299Abstract: According to one embodiment, a display device includes a sheet-like display panel having a first area, second and third areas, and a support substrate bonded to the display panel. The support substrate has a first support portion overlapping the first area, second and third support portions overlapping the second area, fourth and fifth support portions overlapping the third area, a first groove between the first and second support portions, a second groove between the second and third support portions, a third groove between the first and fourth support portions, and a fourth groove between the fourth and fifth support portions. The first and second grooves extend along the second direction. The third and fourth grooves extend along a first direction.Type: GrantFiled: December 20, 2021Date of Patent: October 10, 2023Assignee: Japan Display Inc.Inventors: Mao Izawa, Masaaki Takuma, Hisanori Kawakami
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Publication number: 20220179258Abstract: According to one embodiment, a casing accommodating a display panel and a illumination device includes a bottom portion supporting the illumination device, a first edge part and a second edge part, a third edge part extending along a first direction at a position between the first edge part and the second edge part, a first locking portion provided at the first edge part, and a second locking portion provided at the second edge part, wherein a first adhesive member adheres the display panel to the first locking portion, a second adhesive member adheres the display panel to the second locking portion.Type: ApplicationFiled: February 22, 2022Publication date: June 9, 2022Inventors: Mao IZAWA, Masaaki TAKUMA
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Publication number: 20220113571Abstract: According to one embodiment, a display device includes a sheet-like display panel having a first area, second and third areas, and a support substrate bonded to the display panel. The support substrate has a first support portion overlapping the first area, second and third support portions overlapping the second area, fourth and fifth support portions overlapping the third area, a first groove between the first and second support portions, a second groove between the second and third support portions, a third groove between the first and fourth support portions, and a fourth groove between the fourth and fifth support portions. The first and second grooves extend along the second direction. The third and fourth grooves extend along a first direction.Type: ApplicationFiled: December 20, 2021Publication date: April 14, 2022Inventors: Mao IZAWA, Masaaki TAKUMA, Hisanori KAWAKAMI
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Publication number: 20220068695Abstract: A workpiece supporting apparatus capable of preventing a surface of a workpiece from drying out while maintaining a suction force when supporting the workpiece with a Bernoulli chuck is disclosed. The workpiece supporting apparatus includes a Bernoulli chuck configured to generate a suction force by emitting a gas; and a liquid ejection member surrounding the Bernoulli chuck and configured to discharge a liquid around the Bernoulli chuck.Type: ApplicationFiled: August 18, 2021Publication date: March 3, 2022Inventors: Makoto KASHIWAGI, Mao IZAWA
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Patent number: 11256118Abstract: According to one embodiment, a display device includes a display panel including a display surface and a rear surface located in an opposite side to the display surface, a support plate including a first main surface opposing the rear surface of the display panel, a second main surface located in an opposite side to the first main surface and a first opening opposing at least a central portion of the display panel, and an adhesive tape disposed on the second main surface so as to be overlaid on the first opening, and including a first adhesive region attached on the second main surface around the first opening and a second adhesive region located in the first opening and attached on the rear surface of the display panel.Type: GrantFiled: March 22, 2021Date of Patent: February 22, 2022Assignee: Japan Display Inc.Inventors: Masaaki Takuma, Mao Izawa, Hisanori Kawakami, Susumu Kimura
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Publication number: 20210305466Abstract: According to one embodiment, an illumination device comprises a first mounting board including a plurality of first light emitting elements, a second mounting board including a plurality of second light emitting elements, and a first wiring board including a first wiring line electrically connected to at least one of the plurality of first light emitting elements and the plurality of second light emitting elements. The first mounting board and the second mounting board extend in a first direction and are arranged along a second direction intersecting the first direction. The first wiring board is superposed on the first mounting board and the second mounting board. The first wiring board has rigidity that is lower than rigidity of each of the first mounting board and the second mounting board.Type: ApplicationFiled: March 25, 2021Publication date: September 30, 2021Inventors: Masaaki TAKUMA, Mao IZAWA
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Publication number: 20210208447Abstract: According to one embodiment, a display device includes a display panel including a display surface and a rear surface located in an opposite side to the display surface, a support plate including a first main surface opposing the rear surface of the display panel, a second main surface located in an opposite side to the first main surface and a first opening opposing at least a central portion of the display panel, and an adhesive tape disposed on the second main surface so as to be overlaid on the first opening, and including a first adhesive region attached on the second main surface around the first opening and a second adhesive region located in the first opening and attached on the rear surface of the display panel.Type: ApplicationFiled: March 22, 2021Publication date: July 8, 2021Applicant: Japan Display Inc.Inventors: Masaaki TAKUMA, Mao IZAWA, Hisanori KAWAKAMI, Susumu KIMURA
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Patent number: 10983380Abstract: According to one embodiment, a display device includes a display panel including a display surface and a rear surface located in an opposite side to the display surface, a support plate including a first main surface opposing the rear surface of the display panel, a second main surface located in an opposite side to the first main surface and a first opening opposing at least a central portion of the display panel, and an adhesive tape disposed on the second main surface so as to be overlaid on the first opening, and including a first adhesive region attached on the second main surface around the first opening and a second adhesive region located in the first opening and attached on the rear surface of the display panel.Type: GrantFiled: April 3, 2020Date of Patent: April 20, 2021Assignee: Japan Display Inc.Inventors: Masaaki Takuma, Mao Izawa, Hisanori Kawakami, Susumu Kimura
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Publication number: 20200319495Abstract: According to one embodiment, a display device includes a display panel including a display surface and a rear surface located in an opposite side to the display surface, a support plate including a first main surface opposing the rear surface of the display panel, a second main surface located in an opposite side to the first main surface and a first opening opposing at least a central portion of the display panel, and an adhesive tape disposed on the second main surface so as to be overlaid on the first opening, and including a first adhesive region attached on the second main surface around the first opening and a second adhesive region located in the first opening and attached on the rear surface of the display panel.Type: ApplicationFiled: April 3, 2020Publication date: October 8, 2020Applicant: Japan Display Inc.Inventors: Masaaki TAKUMA, Mao Izawa, Hisanori Kawakami, Susumu Kimura