Patents by Inventor Ryutaro Yamamoto
Ryutaro Yamamoto 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: 20250109249Abstract: A polyimide resin that is a copolymer of an amino compound (A) and a tetrabasic acid dianhydride (B). The amino compound (A) includes a straight chain aliphatic diamino compound (a1) and an aromatic diamino compound (a2). The straight chain aliphatic diamino compound (a1) includes amino groups at both terminals, 1 to 4 methyl groups and/or ethyl groups in a side chain and 17 to 24 carbon atom in a main chain.Type: ApplicationFiled: November 16, 2022Publication date: April 3, 2025Inventors: Kengo Nishimura, Ryutaro Tanaka, Kazuyoshi Yamamoto, Chie Sasaki, Noriyuki Nagashima
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Publication number: 20250100610Abstract: A vehicle steering handle, comprising: a steering wheel that is an isosceles trapezoidal annular body composed of an upper bottom portion, a lower bottom portion longer than the upper bottom portion, and left and right leg portions; an accelerator lever attached to the right leg portion; and a brake lever attached to the left leg portion and the right leg portion.Type: ApplicationFiled: September 18, 2024Publication date: March 27, 2025Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keita MORITSU, Mari SATO, Yoshito WATANABE, Yutaro YAMAMOTO, Ryutaro MISUMI, Kazuyoshi SHIRAI, Takatoshi OHYA, Kohei NOHARA, Yasuhiko FUKUZUMI, Ryunosuke YAMADA, Sei KOBAYASHI, Akihiro SUZUKI, Go TANAKA, Seiji TORIU, Minoru TAKAYAMA, Hiromasa OKADOME, Kazunari ABE, Yuta KAMIYA
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Publication number: 20240376378Abstract: A colorant for fluorescent labeling which has an absorbance retention calculated with equation (I) of 0.5 or greater. When the colorant for fluorescent labeling is dissolved in an organic solvent and the resultant colorant solution is added to phosphate-buffered saline (PBS), then the resultant colorant dispersion (colorant dispersion I) contains dispersed colorant droplets formed therein which have an average droplet diameter of 500 nm or less. Equation (I): Absorbance retention=A1/A0 [In equation (I), A0 indicates the absorbance, at a maximum-absorption wavelength, of the colorant solution (colorant solution I) obtained by dissolving the colorant for fluorescent labeling in the organic solvent and A1 indicates the absorbance, at a maximum-absorption wavelength, of the colorant dispersion (colorant dispersion II) obtained by adding the solution of the colorant for fluorescent labeling to PBS, the colorant solution I and the colorant dispersion II being equal in colorant concentration.Type: ApplicationFiled: October 5, 2022Publication date: November 14, 2024Applicant: artience Co., Ltd.Inventors: Ryutaro YAMAMOTO, Hidenori MINASHIMA, Hiroaki KAWAUCHI
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Publication number: 20230145826Abstract: A fluorescent labeling agent contains a fluorescent dye represented by general formula (1). General formula (1): Q-Z—R1-R2-R3 (In the formula, Q represents the residue of a fluorescent dye. Z represents a direct bond, alkylene group, or arylene group. R1 represents a direct bond, —O—, —OP(?O)R4—, —OC(?O)—, —OS(?O)2—, —OSiR5R6—, —C(?O)—, or —C(?O)NH—. R2 represents a group selected from the group consisting of alkylene groups, arylene groups, and heterocyclic groups, or represents a group provided by combining these groups. R3 represents —COOM1, —NR7R8, or —N+R9R10R11. Here, R4 represents a hydrogen atom, hydroxyl group, alkyl group, aryl group, alkoxy group, aryloxy group, or heterocyclic group. R5 and R6 each independently represent an alkyl group, aryl group, or heterocyclic group. R7-R11 each independently represent a hydrogen atom, alkyl group, or aryl group. M1 represents a monovalent cation.Type: ApplicationFiled: April 2, 2021Publication date: May 11, 2023Applicant: TOYO INK SC HOLDINGS CO., LTD.Inventors: Rino YOKOKURA, Ryutaro YAMAMOTO, Hidenori MINASHIMA
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Patent number: 6005213Abstract: In an insulated type switchgear device in which a pair of arc electrodes are separably disposed in an opposing manner in a vacuum tube, and having a movable conductor extending from a back face of a movable one of the arc electrodes to the outside of the vacuum tube, the pair of arc electrodes are designed to be separated through a rotation of the movable conductor around a predetermined main axis.Type: GrantFiled: February 24, 1998Date of Patent: December 21, 1999Assignees: Hitachi, Ltd., The Tokyo Electric Power Co., Ltd.Inventors: Ayumu Morita, Takashi Sato, Youichi Ohshita, Tooru Tanimizu, Masayoshi Hayakawa, Toshio Horikoshi, Ryutaro Yamamoto
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Patent number: 5952636Abstract: In a vacuum type switch gear device an L shaped stationary and movable conductors arrangement, a transitive portion from one spiral arc groove to a neighboring another spiral arc groove on the surface of a movable electrode defined by the terminating end portion of the one spiral groove, the starting end of the adjacent neighboring other spiral groove and the outer circumferential edge portion of the movable electrode is arranged in a substantially overlapping relationship in a vertical direction with the movable conductor. Thus an adverse effect of a current loop flowing through the movable conductor against an arc generated between movable and stationary electrodes is limited to thereby improve the circuit breaking performance.Type: GrantFiled: June 25, 1998Date of Patent: September 14, 1999Assignees: Hitachi, Ltd., The Tokyo Electric Power Co., Ltd.Inventors: Ayumu Morita, Takashi Sato, Youichi Ohshita, Tooru Tanimizu, Masayoshi Hayakawa, Toshio Horikoshi, Ryutaro Yamamoto
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Patent number: 5892645Abstract: A protection apparatus for a spot network substation has a plurality of receiving lines connected between a network bus and a plurality of power sources. Each receiving line is connected to a primary switching device, a network transformer and a protector CB. A detector for detecting a phase of each receiving line voltage and a judging unit for judging the detected phase are provided on the primary side of each network transformer. A previously stored basic phase is compared with the detected phase of the receiving line voltage. If there is a lag in the detected phase of the receiving line voltage, it is judged to be a power-stop of the corresponding power source and the protector CB is tripped.Type: GrantFiled: July 29, 1997Date of Patent: April 6, 1999Assignees: Hitachi, Ltd., The Tokyo Electric Power Co., Inc.Inventors: Yoshiyasu Watanabe, Toru Tanimizu, Kazuo Kano, Yasunobu Kanou, Toshio Horikoshi, Koji Kondou, Ryutaro Yamamoto, Nobuhiro Kuroda
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Patent number: 5398964Abstract: A starting device for an air bag includes a mass body, a drive shaft and an ignition pin. The mass body detects a rapid deceleration of a vehicle by inertial movement of the mass body. An end portion of the mass body in the direction of inertial movement contacts a vicinity of one end portion of the drive shaft in a longitudinal direction thereof. The drive shaft is urged by an urging member and holds the mass body at a predetermined position due to urging force of the urging member. The drive shaft has an engaging member at a portion of the drive shaft in the longitudinal direction thereof, and is provided so as to be rotatable around the engaging member by the inertial movement of the mass body. The ignition pin includes a shaft member and a stepped collar member, the stepped collar member being formed at a portion of the shaft member in the longitudinal direction thereof.Type: GrantFiled: October 27, 1993Date of Patent: March 21, 1995Assignee: Kabushiki Kaisha Tokai-Rika-Denki-SeisakushoInventor: Ryutaro Yamamoto