Patents by Inventor Takahiro Nakagawa
Takahiro Nakagawa 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: 12291686Abstract: The present invention generally relates to lubricating oil compositions useful for automatic transmissions, and particularly transmission oils for automotive automatic transmissions in battery electrical vehicles (BEVs), hybrid vehicles (HVs) and plug-in hybrid vehicles (PHVs). The lubricant is free of metal compounds (e.g., Ca, Mo, or Zn) and demonstrates high volume resistivity, wear protection, and copper corrosion resistance.Type: GrantFiled: March 19, 2020Date of Patent: May 6, 2025Assignee: CHEVRON JAPAN LTD.Inventors: Koichi Kubo, Masami Fuchi, Naoya Sasaki, Takahiro Nakagawa, Satoshi Ohta
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Publication number: 20250115824Abstract: This disclosure describes a lubricating oil composition that includes a major amount of an oil of lubricating viscosity and one or more nitrogen-containing additive having the formula: wherein R1 is functional group containing 10 to 250 carbon atoms; and R2 and R3 are independently functional groups containing 2 to 20 carbon atoms.Type: ApplicationFiled: February 21, 2023Publication date: April 10, 2025Inventors: Priyank SHAH, Hiroki ANDOH, Masami FUCHI, Takahiro NAKAGAWA, Ataru MINAMI, Satoshi OHTA, Koichi KUBO
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Publication number: 20250109350Abstract: A lubricating oil composition for an automotive vehicle with an electric motor and/or generator is provided. The lubricating oil composition includes: a. a major amount of an oil of lubricating viscosity having a kinematic viscosity at 100° C. in a range of about 1.5 mm2/s to about 20 mm2/s; b. an sulfur-based additive including a thiadiazole and a sulfurized polyolefin of formula (I): where R1 is hydrogen or methyl, and R2 is a C8-C40 hydrocarbyl group, the sulfur-based additive providing sulfur to the lubricating oil composition in an amount of 0.01 wt. % to 0.2 wt. %, based on the total weight of the lubricating oil composition; c. a phosphorus compound; and d. an ashless polyisobutenyl succinimide-based dispersant containing boron. The lubricating oil composition provides exceptional volume resistivity, detergency, thermal and oxidative stability, wear resistance, and corrosion resistance at high temperatures.Type: ApplicationFiled: October 31, 2022Publication date: April 3, 2025Inventors: Ryota SAWAIRI, Seiya SHIMIZU, Masami FUCHI, Takahiro NAKAGAWA, Satoshi OHTA, Koichi KUBO, Ataru MINAMI
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Publication number: 20250101337Abstract: A lubricating oil composition provides improved anti-shudder performance by lubricating an automatic transmission or continuously variable transmission. The lubricating oil composition includes (a) one or more ashless dispersants; and (b) at least one acidic phosphorus compound. When the at least one acidic phosphorus compound is composed only of phosphoric acid, the lubricating oil composition additionally contains one or more neutral phosphorus compounds. The neutralization ratio of the (a) one or more ashless dispersants/the (b) at least one acidic phosphorus compound is 60 to 100%. The lubricating oil composition further includes at least one friction modifier.Type: ApplicationFiled: January 25, 2023Publication date: March 27, 2025Inventors: Masami FUCHI, Naoya SASAKI, Takahiro NAKAGAWA, Satoshi OHTA, Young A. CHANG, Koichi KUBO, William Raymond RUHE, JR.
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Patent number: 12252319Abstract: When the front sheet portion is viewed from a front side in a pre-filling state in which a storage space is not filled with contents and the gusset sheet portion is arranged overlapping the back sheet portion in a front-rear direction, a width of the gusset sheet portion is greater than a width of the second joining portion in a width direction, the first side-end joining portion includes a first inclined portion, and the second side-end joining portion includes a second inclined portion. When the front sheet portion is viewed from the front side in a post-filling state in which the storage space is filled with contents and the gusset sheet portion faces one side in a height direction, the first inclined portion and the second inclined portion extend along the height direction.Type: GrantFiled: July 10, 2023Date of Patent: March 18, 2025Assignee: Fuji Seal International, Inc.Inventors: Mine Hashimoto, Takahiro Nakagawa
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Publication number: 20240363268Abstract: Conductive member 31 comprises a plurality of conductive nitride layers 32 and at least one nitride-metal layer 33 that includes a conductive nitride and a metal. The conductive nitride layers 32 and the at least one nitride-metal layer 33 are alternately stacked. Nitride-metal layer 33 includes metal dispersion layer 33A in which the metal is dispersed in the conductive nitride.Type: ApplicationFiled: April 22, 2024Publication date: October 31, 2024Inventors: Kazuya MAEKAWA, Shinji HARA, Naoki OHTA, Susumu AOKI, Maiko KOKUBO, Takahiro NAKAGAWA
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Publication number: 20240355677Abstract: A method for manufacturing an electronic device includes a stretchable member attachment step of attaching stretchable member 21 to first substrate 2 on which second substrate 3 is stacked, a first modification line formation step of forming one or more first modification lines 22 by irradiating the first substrate 2 with a laser beam, and a dividing step of stretching the stretchable member 21 to divide the first substrate 2 along the one or more first modification lines 22.Type: ApplicationFiled: April 11, 2024Publication date: October 24, 2024Inventors: Shinji HARA, Susumu AOKI, Kazuya MAEKAWA, Maiko KOKUBO, Takahiro NAKAGAWA
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Publication number: 20240321773Abstract: According to the present embodiment, a semiconductor device includes a semiconductor substrate, a circuit element, a first wiring layer, and an element protection member. The circuit element is formed on an upper surface side of the semiconductor substrate and includes at least one switching element. The first wiring layer includes a plurality of first wires electrically connected to the circuit element and is provided above the semiconductor substrate via a first interlayer dielectric film. The element protection member extends along an upper surface of the semiconductor substrate to discontinuously surround the circuit element with a conductive member. A first wire insulation film between the first wires in the first wiring layer is formed by an oxide insulation film with a dielectric constant of 3.5 or more.Type: ApplicationFiled: September 13, 2023Publication date: September 26, 2024Inventors: Kazuya NISHIHORI, Keita MASUDA, Takahiro NAKAGAWA, Akihiro IMADA
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Publication number: 20240101923Abstract: This disclosure describes a zinc-free lubricating oil composition. The composition includes a major amount of an oil of lubricating viscosity having a kinematic viscosity at 100° C. in a range of about 1.5 to about 35 mm2/s and an anti-wear mixture having one or more ashless dispersants and an alkyl phosphonic acid having a structure given by wherein R is a C3-C20 hydrocarbyl group. The initial pH of the anti-wear mixture is between 5-9.5 as measured by ASTM D664.Type: ApplicationFiled: September 14, 2021Publication date: March 28, 2024Applicant: CHEVRON JAPAN LTD.Inventors: Masami FUCHI, Naoya SASAKI, Takahiro NAKAGAWA, Satoshi OHTA, Naoki MASUDA, Koichi KUBO
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Publication number: 20240096876Abstract: According to one embodiment, a semiconductor device includes a plurality of transistors. The transistors are coupled through serial coupling. The transistors include a first transistor and a second transistor. The semiconductor device further includes a third transistor and a first diode. The second transistor includes a first sub-transistor and a second sub-transistor that are coupled in parallel with each other. The first transistor, the first sub-transistor, the second sub-transistor, the third transistor, and the first diode are arranged on a substrate, with the third transistor interposed between the first sub-transistor and the second sub-transistor in a first direction.Type: ApplicationFiled: March 6, 2023Publication date: March 21, 2024Inventors: Takahiro NAKAGAWA, Kazuya NISHIHORI, Yasuhiko KURIYAMA
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Publication number: 20240010408Abstract: When the front sheet portion is viewed from a front side in a pre-filling state in which a storage space is not filled with contents and the gusset sheet portion is arranged overlapping the back sheet portion in a front-rear direction, a width of the gusset sheet portion is greater than a width of the second joining portion in a width direction, the first side-end joining portion includes a first inclined portion, and the second side-end joining portion includes a second inclined portion. When the front sheet portion is viewed from the front side in a post-filling state in which the storage space is filled with contents and the gusset sheet portion faces one side in a height direction, the first inclined portion and the second inclined portion extend along the height direction.Type: ApplicationFiled: July 10, 2023Publication date: January 11, 2024Inventors: Mine Hashimoto, Takahiro Nakagawa
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Publication number: 20210292676Abstract: The present invention generally relates to lubricating oil compositions useful for automatic transmissions, and particularly transmission oils for automotive automatic transmissions in battery electrical vehicles (BEVs), hybrid vehicles (HVs) and plug-in hybrid vehicles (PHVs). The lubricant is free of metal compounds (e.g., Ca, Mo, or Zn) and demonstrates high volume resistivity, wear protection, and copper corrosion resistance.Type: ApplicationFiled: March 19, 2020Publication date: September 23, 2021Applicant: CHEVRON JAPAN LTD.Inventors: Koichi KUBO, Masami FUCHI, Naoya SASAKI, Takahiro NAKAGAWA, Satoshi OHTA
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Patent number: 11004772Abstract: A cooling structure according to the present invention is provided with: a base material formed with a cooling water flow passageway; a pipe which includes a first layer formed on an outer surface of the base material, and a second layer formed on the outside of the first layer; and a plate having the pipe cast therein. The base material is configured from a highly thermally conductive first material. The first layer is configured from a heat-resistant second material. The second layer is configured from a third material having high affinity with the second material. The plate is configured from a highly thermally conductive fourth material. The second material and the third material respectively have high affinity with the fourth material.Type: GrantFiled: June 15, 2018Date of Patent: May 11, 2021Assignee: NEC CORPORATIONInventor: Takahiro Nakagawa
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Publication number: 20200176356Abstract: A cooling structure according to the present invention is provided with: a base material formed with a cooling water flow passageway; a pipe which includes a first layer formed on an outer surface of the base material, and a second layer formed on the outside of the first layer; and a plate having the pipe cast therein. The base material is configured from a highly thermally conductive first material. The first layer is configured from a heat-resistant second material. The second layer is configured from a third material having high affinity with the second material. The plate is configured from a highly thermally conductive fourth material. The second material and the third material respectively have high affinity with the fourth material.Type: ApplicationFiled: June 15, 2018Publication date: June 4, 2020Applicant: NEC CORPORATIONInventor: Takahiro NAKAGAWA
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Patent number: 10604719Abstract: The present invention generally relates to lubricating oil compositions useful for automatic transmissions, and particularly transmission oils for automotive automatic transmissions and/or continuously variable transmissions using wet clutch systems, in particular wet paper clutch containing a small amount of cellulose fiber and/or aramid fiber.Type: GrantFiled: February 22, 2018Date of Patent: March 31, 2020Assignee: Chevron Japan LTD.Inventors: Koichi Kubo, Masami Fuchi, Takahiro Nakagawa, Naoya Sasaki, Satoshi Ohta
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Publication number: 20200086657Abstract: A label that is an example of an embodiment of the present invention is provided with: a label base material with a dyne number of 40 mN/m or less; a water-based ink layer formed directly on the label base material and having a dot reproduction rate of 50-95%; a foundation solvent-based ink layer formed above the label base material while covering the water-based ink layer; and an solvent-based ink layer formed above the label base material while covering the water-based ink layer and the foundation solvent-based ink layer.Type: ApplicationFiled: June 14, 2018Publication date: March 19, 2020Inventors: Masafumi Harada, Takahiro Nakagawa
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Publication number: 20190256792Abstract: The present invention generally relates to lubricating oil compositions useful for automatic transmissions, and particularly transmission oils for automotive automatic transmissions and/or continuously variable transmissions using wet clutch systems, in particular wet paper clutch containing a small amount of cellulose fiber and/or aramid fiber.Type: ApplicationFiled: February 22, 2018Publication date: August 22, 2019Inventors: Koichi Kubo, Masami Fuchi, Takahiro Nakagawa, Naoya Sasaki, Satoshi Ohta
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Patent number: 10347655Abstract: A radio frequency switch includes a switch circuit having switchable radio frequency (RF) signal pathways. Each switchable RF signal pathway comprises a plurality of n-type MOSFETs connected in series. A control circuit is configured to control a conduction state of the plurality of switchable RF signal pathways. Each n-type MOSFET includes a body region between a source region thereof and a drain region thereof. A gate electrode is on the body region. A silicon nitride film having a tensile internal stress covers the source layer, the drain layer, and the gate electrode.Type: GrantFiled: January 19, 2017Date of Patent: July 9, 2019Assignee: Kabushiki Kaisha ToshibaInventors: Kazuya Nishihori, Keita Masuda, Tooru Suga, Takahiro Nakagawa, Kazuhiko Shibata
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Publication number: 20190031098Abstract: An information output device according to an embodiment includes a detection unit, a display control unit, and a sound control unit. The detection unit detects an operation of a user that is executed on an input unit that is connected to a display unit. The display control unit displays, on the display unit, a notification screen that presents predetermined notification information to the user. The sound control unit outputs a notification sound that is associated with display of the notification screen that is executed by the display control unit. Furthermore, the sound control unit limits output of the notification sound for a period of time when an operation of the user is detected by the detection unit.Type: ApplicationFiled: March 20, 2018Publication date: January 31, 2019Applicant: DENSO TEN LimitedInventors: Tamaki TAKEUCHI, Takahiro NAKAGAWA
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Patent number: RE46753Abstract: Provision of an intermediate shaft and a torque meter between a test product and a dynamometer in a transmission testing device in which the test product is set in an environmental chamber leads to a long axial length and thereby requires a large floor area for setting, and also causes a twisting of a shaft and leads to a poor rigidity. A hollow spacer is provided between a face plate of the environmental chamber and a test product attachment holder to which the test product is attached. A flange with an H-shape in side view is disposed in the hollow of the spacer. The flange has an end connected to an adaptor flange fixed to the test product, and another end connected to a rotating shaft of the dynamometer via the torque meter.Type: GrantFiled: September 13, 2016Date of Patent: March 13, 2018Assignee: MEIDENSHA CORPORATIONInventor: Takahiro Nakagawa