公开(公告)号：US11863125B2

公开(公告)日：2024-01-02

申请号：US17794503

申请日：2021-01-05

Applicant: TOKYO INSTITUTE OF TECHNOLOGY

Inventor： Safumi Suzuki ,  Van Ta Mai ,  Yusei Suzuki ,  Masahiro Asada

IPC: H03B7/08 ,  H01L21/306 ,  H01L29/66 ,  H01L29/88 ,  H01L27/06

CPC classification number: H03B7/08 ,  H01L21/30604 ,  H01L27/0605 ,  H01L27/0676 ,  H01L29/66083 ,  H01L29/882

Abstract: An object of the present invention is to provide a terahertz oscillator that does not have an MIM capacitor structure of which producing is intricacy, and oscillates due to resonance of an RTD and stabilizing resistors. The present invention is a terahertz oscillator, wherein a slot antenna having a slot is formed between a first electrode plate and a second electrode plate which are applied a bias voltage, stabilizing resistors to respectively connect to the first electrode plate and the second electrode plate are provided in the slot, an RTD is provided on the second electrode plate through a mesa, and a conductive material member to form an air bridge between the first electrode plate and the mesa is provided, and wherein an oscillation in a terahertz frequency band is obtained due to a resonance of the RTD and the stabilizing resistors.

公开(公告)号：US11795059B2

公开(公告)日：2023-10-24

申请号：US16647739

申请日：2019-01-31

Applicant: TOKYO INSTITUTE OF TECHNOLOGY

Inventor： Tetsuya Kambe ,  Shotaro Imaoka ,  Aiko Watanabe ,  Kimihisa Yamamoto

IPC: C01B35/00 ,  C01B35/10 ,  C30B29/16 ,  C30B29/68 ,  B82Y30/00 ,  B82Y40/00 ,  C30B7/14

CPC classification number: C01B35/1027 ,  C30B29/16 ,  C30B29/68 ,  B82Y30/00 ,  B82Y40/00 ,  C01P2002/20 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2002/77 ,  C01P2002/82 ,  C01P2002/84 ,  C01P2002/85 ,  C01P2002/88 ,  C01P2004/02 ,  C01P2004/03 ,  C01P2004/04 ,  C30B7/14

Abstract: Provided are an atomic layer sheet that contains boron and oxygen as framework elements, is networked by nonequilibrium couplings having boron-boron bonds, and has a molar ratio of oxygen to boron (oxygen/boron) of less than 1.5, a laminated sheet containing a plurality of such atomic layer sheets and metal ions between ones of the sheets, and a thermotropic liquid crystal and a lyotropic liquid crystal containing these. In addition, there is provided a method for manufacturing an atomic layer sheet and/or a laminated sheet containing boron and oxygen, the method including: adding MBH4, where M represents an alkali metal ion, into a solvent containing an organic solvent in an inert gas atmosphere to prepare a solution; and exposing the solution to an atmosphere containing oxygen.

公开(公告)号：US11789147B2

公开(公告)日：2023-10-17

申请号：US16834522

申请日：2020-03-30

Applicant: FUJIFILM BUSINESS INNOVATION CORP. ,  TOKYO INSTITUTE OF TECHNOLOGY

Inventor： Junichiro Hayakawa ,  Daiki Tominaga ,  Akemi Murakami ,  Fumio Koyama

IPC: H01S5/50 ,  G01S17/08 ,  G01S7/481 ,  H01S5/343 ,  B23K26/06

CPC classification number: G01S17/08 ,  B23K26/0648 ,  G01S7/4814 ,  H01S5/3432 ,  H01S5/34353 ,  H01S5/50

Abstract: A semiconductor optical amplifier includes: a substrate; a light source unit formed on the substrate; and an optical amplification part that amplifies light propagating in a predetermined direction from the light source unit and emits the amplified light in an emission direction intersecting with the substrate surface. The optical amplification part includes a conductive region extending in the predetermined direction along the substrate surface from the light source unit, and a nonconductive region formed around the conductive region. The conductive region includes a first region extending from the light source unit and having a predetermined width as seen from a direction perpendicular to the substrate surface, and a second region connected to the first region and having a width widened relative to the predetermined width of the first region, the second region being configured to expand the propagation light in a direction intersecting with the predetermined direction.

公开(公告)号：US20230329114A1

公开(公告)日：2023-10-12

申请号：US18334747

申请日：2023-06-14

Applicant: Sanoh Industrial Co., Ltd. ,  TOKYO INSTITUTE OF TECHNOLOGY

Inventor： Biao MEI ,  Sachiko MATSUSHITA

IPC: H10N10/17 ,  H10N10/01

CPC classification number: H10N10/17 ,  H10N10/01

Abstract: A thermoelectric cell includes a thermoelectric body including heat-utilizing power generating elements in each of which a thermoelectric conversion layer and a solid electrolyte layer are layered, and converting thermal energy into electrical energy, a conductive case including a first case body and a second case body which are combined in an insulated state and accommodating the thermoelectric body, an insulating member electrically insulating the first case body or the second case body and the solid electrolyte layer on a side surface of the thermoelectric body while electrically insulating the first case body and the second case body, and a compressible conductor accommodated in the case and compressed by being sandwiched between the thermoelectric body and the case. The first case body, the thermoelectric body, and the second case body are electrically connected in a stacked direction.

公开(公告)号：US20230241637A1

公开(公告)日：2023-08-03

申请号：US18159267

申请日：2023-01-25

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  Hanbat National University Industry-Academic Cooperation Foundation

Inventor： Joon-wan Kim ,  Dong Soo Kim ,  Min Hun Jung ,  Hyun Ah Lee

IPC: B05B12/22 ,  B05B5/08

CPC classification number: B05B12/22 ,  B05B5/082

Abstract: Provided is a pattern forming apparatus which may form a pattern on a substrate with high precision by using a material including an organic material, the pattern forming apparatus including: a capillary facing a grounded substrate and capable of storing a solution including a sample; a power source applying a voltage to the capillary; a stencil mask disposed between the capillary and the substrate, and including an opening through which the sample passes; and a cross-direction actuator moving the stencil mask in a cross direction crossing a direction in which the sample passes.

公开(公告)号：US20230212021A1

公开(公告)日：2023-07-06

申请号：US18001087

申请日：2021-06-22

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  NGK SPARK PLUG CO., LTD.

Inventor： Akira NAKAJIMA ,  Takumi MATSUMOTO ,  Mao SHOJI ,  Hisashi KOZUKA

IPC: C01F17/32 ,  A01P1/00 ,  C04B35/50

CPC classification number: C01F17/32 ,  A01P1/00 ,  C04B35/50 ,  C01P2002/74 ,  C01P2006/90 ,  C04B2235/3227 ,  C04B2235/3256 ,  C04B2235/76

Abstract: A lanthanum molybdenum composite oxide is provided. The lanthanum molybdenum composite oxide has a primary crystal phase formed of La2Mo2O9. The lanthanum molybdenum composite oxide also has a secondary crystal phase formed of a lanthanum molybdenum composite oxide species other than La2Mo2O9. The secondary crystal phase may contain at least one species selected from a group consisting of La2Mo3O12, La6MoO12, La7Mo7O30, La2Mo4O15, La2MoO6, La4MoO9, and LaMo2O5.

公开(公告)号：US11604235B2

公开(公告)日：2023-03-14

申请号：US17274604

申请日：2019-10-15

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  OSAKA UNIVERSITY

Inventor： Mutsuko Hatano ,  Takayuki Iwasaki ,  Yoshie Harada ,  Yuji Hatano

IPC: G01R33/24 ,  G01N21/64

Abstract: A magnetic measuring device includes: a determination part configured to identify four maximum inclination points in an average value in a visual field of a light detection magnetic resonance spectrum and configured to determined a degree of decrease in relative fluorescence intensity and a microwave frequency at each of the maximum inclination points; a setting part configured to set a reference decrease degree of the relative fluorescence intensity in a predetermined area and configured to set operating point frequency initial values at four points at which the reference decrease degree is achieved, near the microwave frequencies at the respective maximum inclination points; a frequency update part configured to update operating point frequencies at the four points; and a frequency correction part configured to input the updated operating point frequencies to a microwave oscillator as corrected operating point frequencies.

公开(公告)号：US20230057209A1

公开(公告)日：2023-02-23

申请号：US17794503

申请日：2021-01-05

Applicant: TOKYO INSTITUTE OF TECHNOLOGY

Inventor： Safumi SUZUKI ,  Van Ta MAI ,  Yusei SUZUKI ,  Masahiro ASADA

IPC: H03B7/08 ,  H01L29/88 ,  H01L29/66 ,  H01L21/306

Abstract: An object of the present invention is to provide a terahertz oscillator that does not have an MIM capacitor structure of which producing is intricacy, and oscillates due to resonance of an RTD and stabilizing resistors. The present invention is a terahertz oscillator, wherein a slot antenna having a slot is formed between a first electrode plate and a second electrode plate which are applied a bias voltage, stabilizing resistors to respectively connect to the first electrode plate and the second electrode plate are provided in the slot, an RTD is provided on the second electrode plate through a mesa, and a conductive material member to form an air bridge between the first electrode plate and the mesa is provided, and wherein an oscillation in a terahertz frequency band is obtained due to a resonance of the RTD and the stabilizing resistors.

公开(公告)号：US11560444B2

公开(公告)日：2023-01-24

申请号：US16780643

申请日：2020-02-03

Applicant: TOKYO OHKA KOGYO CO., LTD. ,  TOKYO INSTITUTE OF TECHNOLOGY

Inventor： Teruaki Hayakawa ,  Seina Yamazaki ,  Akiyoshi Yamazaki ,  Daisuke Kawana ,  Yoshitaka Komuro ,  Takaya Maehashi ,  Rin Odashima

IPC: C08F297/02 ,  C09D153/00

Abstract: A block copolymer including a first block consisting of a polymer having a repeating structure of a structural unit (u1) containing no silicon atom, and a second block consisting of a polymer having a repeating structure of a structural unit (u2) containing a silicon atom, the second block containing a block (b21) consisting of a polymer having a repeating structure of a structural unit (u21) represented by general formula (u2-1) shown below, and the volume ratio of the first block, based on all blocks constituting the block copolymer being 42 to 44 vol %: In which RP211 represents an alkyl group, a halogenated alkyl group, a hydrogen atom, or an organic group having a polar group; and RP212 is a group derived from a compound represented by formula SHRt1, wherein Rt1 represents a hydrocarbon group having 1 to 5 carbon atoms optionally having a substituent.

公开(公告)号：US20230021125A1

公开(公告)日：2023-01-19

申请号：US17810026

申请日：2022-06-30

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  ADVANTEST CORPORATION

Inventor： Takayuki OHBA ,  Shinji SUGATANI

IPC: H01L23/498

Abstract: A semiconductor device includes a power supply and ground layer and a semiconductor chip disposed over the power supply and ground layer. The power supply and ground layer includes a substrate and a wiring part. The substrate has one or more grooves whose openings are directed toward the semiconductor chip, and the wiring part is disposed within the one or more grooves via an insulating layer and is formed in a predetermined pattern. The substrate is connected to ground wiring of the semiconductor chip and the wiring part is connected to power supply wiring of the semiconductor chip. The wiring part is not exposed from a back surface of the substrate.