Patents by Inventor Takayuki Yoshikawa
Takayuki Yoshikawa 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: 20240141199Abstract: A compound having formula (1) has excellent heat resistance. In formula (1), X represents a divalent polycyclic condensed ring group having two or more thiophene rings and having an sp3 carbon atom as a constituent element. R1 and R2 each represent an alkyl group, R3 represents an alkyl group, k represents an integer of 0 to 4, and A represents a group having formula (a1), (a2), or (b1): R4, R5, R6, R7, R8, and R9 each represent an alkyl group, E1 and E2 each represent —C(R10)(R11)—, —C(O)—, —O—, or —NR12—. R10 and R11 each represent an alkyl group, R12 represents an alkyl group, m and n each represent 0 or 1, where m+n=1.Type: ApplicationFiled: December 14, 2021Publication date: May 2, 2024Inventors: Eiji YOSHIKAWA, Takayuki OKACHI, Yoshiaki TSUBATA, Takahiro SATO
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Publication number: 20240112571Abstract: A congestion prediction device, a congestion prediction method, and a storage medium are provided. A mapping outputs an output variable when input variables are input to the mapping. The output variable indicates a degree of congestion in a predetermined specific area. The mapping is learned in advance by machine learning. The input variables include congestion variables. Each of the congestion variables indicates a degree of congestion in the specific area at regular time intervals within a specific period. The output variable indicates a degree of congestion after a lapse of the regular time interval from an end time of the specific period.Type: ApplicationFiled: September 26, 2023Publication date: April 4, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ayumu SHIOMI, Atsushi MIYAGAWA, Hiroki TAKEUCHI, Toshiyuki KAWAI, Ryosuke FUKAYA, Hiroyuki TOKITA, Yusuke IKENOUE, Tsukasa KATO, Katsuhisa YOSHIKAWA, Yuta ICHIJYO, Takayuki AKAISHI, Shintaro KAWAI
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Patent number: 11939977Abstract: A scroll compressor comprising a fixed scroll (15); an orbiting scroll (16) supported in a manner allowing for orbiting motion; a discharge port through which a fluid compressed by the two scrolls (15, 16) is discharged; an end plate step portion (16E) provided on an end plate of the orbiting scroll (16) formed so that a height of the end plate is higher on a center portion side in the direction of a spiral wrap and lower on an outer end side; and a wrap step portion (15E) provided on a wall portion of the fixed scroll (15) that corresponds to the end plate step portion (16E) so that a height of the wall portion is lower on the center portion side of the spiral and higher on the outer end side; wherein the orbiting scroll (16) is treated for surface hardening and the fixed scroll (15) is not treated for surface hardening.Type: GrantFiled: January 27, 2021Date of Patent: March 26, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.Inventors: Hajime Sato, Makoto Takeuchi, Genta Yoshikawa, Kazuhide Watanabe, Katsuhiro Fujita, Takayuki Hagita, Takayuki Kuwahara
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Patent number: 11090644Abstract: The present invention relates to a porous carbon material having a nitrogen content of 0.5 to 2.0 mass % and an iron content of at least 400 mg/kg-porous carbon material or more, and also having an electrical conductivity of 10 S/cm or more as determined by powder resistance measurement.Type: GrantFiled: December 7, 2017Date of Patent: August 17, 2021Assignee: KURARAY CO., LTD.Inventors: Keita Takahashi, Takayuki Yoshikawa, Mitsunori Hitomi, Takayuki Yamada
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Publication number: 20210225330Abstract: A notification device includes a first input portion to which first information is input, a second input portion to which second information is input, a display portion to variably display information, and a control portion. The control portion controls the display portion to display information corresponding to the first information with a first display attribute and to display information corresponding to the second information with a second display attribute different from the first display attribute.Type: ApplicationFiled: September 28, 2018Publication date: July 22, 2021Applicant: PATLITE CORPORATIONInventors: Daisuke SHIGEMATSU, Takayuki YOSHIKAWA
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Patent number: 11065603Abstract: One aspect of the present invention relates to a porous carbon material having a nitrogen content of 0.6 to 2.0% by mass, a G band half-value width of 51 to 60 cm?1 and an R value of 1.08 to 1.40 measured in a Raman spectrum using a laser having a wavelength of 532 nm, and iodine adsorption performance of 1000 to 1500 mg/g.Type: GrantFiled: December 20, 2019Date of Patent: July 20, 2021Assignee: KURARAY CO., LTD.Inventors: Keita Takahashi, Takayuki Yoshikawa, Mitsunori Hitomi, Takayuki Yamada
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Patent number: 10987650Abstract: One aspect of the present invention relates to an adsorption filter containing an activated carbon and a fibrous binder. The adsorption filter has a density of 0.400 g/ml or more, and a pore volume at a pore diameter of 1 to 20 ?m is 0.60 ml/g or less as measured by mercury intrusion porosimetry.Type: GrantFiled: December 18, 2018Date of Patent: April 27, 2021Assignee: KURARAY CO., LTD.Inventors: Keita Takahashi, Takayuki Yoshikawa, Tetsuya Hanamoto, Hiroe Yoshinobu, Takayuki Yamada
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Patent number: 10974224Abstract: The present invention relates to an activated carbon having an electric conductivity of 3.5 S/cm or more obtained by powder resistance measurement under a load of 12 kN and an oxygen content of 3.0% by mass or more, and a metal-carrying activated carbon using the same, and the like.Type: GrantFiled: December 17, 2018Date of Patent: April 13, 2021Assignee: KURARAY CO., LTDInventors: Keita Takahashi, Takayuki Yoshikawa, Takayuki Yamada
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Publication number: 20210046452Abstract: One aspect of the present invention relates to a porous carbon material having a nitrogen content of 0.6 to 2.0% by mass, a G band half-value width of 51 to 60 cm?1 and an R value of 1.08 to 1.40 measured in a Raman spectrum using a laser having a wavelength of 532 nm, and iodine adsorption performance of 1000 to 1500 mg/g.Type: ApplicationFiled: December 20, 2019Publication date: February 18, 2021Applicant: KURARAY CO., LTD.Inventors: Keita TAKAHASHI, Takayuki Yoshikawa, Mitsunori Hitomi, Takayuki Yamada
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Publication number: 20200398247Abstract: One aspect of the present invention relates to an adsorption filter containing an activated carbon and a fibrous binder. The adsorption filter has a density of 0.400 g/ml or more, and a pore volume at a pore diameter of 1 to 20 ?m is 0.60 ml/g or less as measured by mercury intrusion porosimetry.Type: ApplicationFiled: December 18, 2018Publication date: December 24, 2020Applicant: KURARAY CO., LTD.Inventors: Keita Takahashi, Takayuki Yoshikawa, Tetsuya Hanamoto, Hiroe Yoshinobu, Takayuki Yamada
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Publication number: 20200384444Abstract: The present invention relates to an activated carbon having an electric conductivity of 3.5 S/cm or more obtained by powder resistance measurement under a load of 12 kN and an oxygen content of 3.0% by mass or more, and a metal-carrying activated carbon using the same, and the like.Type: ApplicationFiled: December 17, 2018Publication date: December 10, 2020Applicant: KURARAY CO., LTD.Inventors: Keita TAKAHASHI, Takayuki Yoshikawa, Takayuki Yamada
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Publication number: 20190329235Abstract: The present invention relates to a porous carbon material having a nitrogen content of 0.5 to 2.0 mass % and an iron content of at least 400 mg/kg-porous carbon material or more, and also having an electrical conductivity of 10 S/cm or more as determined by powder resistance measurement.Type: ApplicationFiled: December 7, 2017Publication date: October 31, 2019Applicant: Kuraray Co., Ltd.Inventors: Keita TAKAHASHI, Takayuki YOSHIKAWA, Mitsunori HITOMI, Takayuki YAMADA
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Patent number: 9359390Abstract: An activated carbon having a high catalytic activity as an oxidation catalyst or a decomposition catalyst, and use therefor are provided. The activated carbon has (a) an oxygen content in a range from 1.40 to 4.30% by mass, (b) a nitrogen content in a range from 0.90 to 2.30% by mass, (c) a sulfur content in a range from 0.50 to 1.20% by mass, and (d) a hydrogen content in a range from 0.40 to 0.65% by mass. The activated carbon may have at least one characteristic of (e) an amount of an acidic surface functional group of 0.10 to 0.36 meq/g, (f) an amount of a basic surface functional group of 0.50 to 1.30 meq/g, and (g) a benzene adsorption capacity of 25 to 50%. The activated carbon catalyzes an oxidation reaction of N-(phosphonomethyl)iminodiacetic acid with a peroxide (e.g., hydrogen peroxide) and achieves an efficient production of N-(phosphonomethyl)glycine even after repetitive use. The activated carbon also efficiently decomposes a chloramine.Type: GrantFiled: March 24, 2011Date of Patent: June 7, 2016Assignee: Kuraray Chemical Co., Ltd.Inventors: Mitsunori Hitomi, Takayuki Yoshikawa, Takayuki Yamada
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Publication number: 20130023405Abstract: An activated carbon having a high catalytic activity as an oxidation catalyst or a decomposition catalyst, and use therefor are provided. The activated carbon has (a) an oxygen content in a range from 1.40 to 4.30% by mass, (b) a nitrogen content in a range from 0.90 to 2.30% by mass, (c) a sulfur content in a range from 0.50 to 1.20% by mass, and (d) a hydrogen content in a range from 0.40 to 0.65% by mass. The activated carbon may have at least one characteristic of (e) an amount of an acidic surface functional group of 0.10 to 0.36 meq/g, (f) an amount of a basic surface functional group of 0.50 to 1.30 meq/g, and (g) a benzene adsorption capacity of 25 to 50%. The activated carbon catalyzes an oxidation reaction of N-(phosphonomethyl) iminodiacetic acid with a peroxide (e.g., hydrogen peroxide) and achieves an efficient production of N-(phosphonomethyl)glycine even after repetitive use. The activated carbon also efficiently decomposes a chloramine.Type: ApplicationFiled: March 24, 2011Publication date: January 24, 2013Applicant: Kuraray Chemical Co., Ltd.Inventors: Mitsunori Hitomi, Takayuki Yoshikawa, Takayuki Yamada
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Patent number: 7052533Abstract: The invention provides a filter element exhibiting an excellent deodorizing and adsorbing function with low pressure drop, as well as to a method for its manufacture and a filter using the element. The filter element is manufactured by coating a base fabric with an adhesive and allowing the fabric to move in an electrostatic field formed by a high voltage generating device to allow pulverized adsorbent powder with a specific mean particle size and standard deviation to electrostatically adhere to the base fabric surface. The filter element can also be manufactured by dispersing a pulverized adsorbent powder on the surface of a base fabric comprising heat-fusible fibers, and then partially fusing the heat-fusible fibers by heating to attach them to the adsorbent powder and allow the adsorbent powder to adhere to the base fabric surface.Type: GrantFiled: April 1, 2002Date of Patent: May 30, 2006Assignee: Kuraray Chemical Co., Ltd.Inventors: Fumio Nakahara, Teruyo Fukuura, legal representative, Takayuki Yoshikawa, Masaki Fukuura, deceased
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Publication number: 20050092675Abstract: The invention provides a filter element exhibiting an excellent deodorizing and adsorbing function with low pressure drop, as well as to a method for its manufacture and a filter using the element, and this is achieved by a filter element which satisfies the relationship that 0?A?1.1 mB+C and m=0.28?0.0005 D50, with the proviso that 0<C?15, where D50 (?m) is the 50% particle diameter of the adsorbent powder, B (g/m2) is the amount of the adsorbent powder adhered to the base fabric, A (Pa) is the pressure drop of the filter as measured at room temperature under an air flow rate of 1 m/sec and C (Pa) is the pressure drop of the base fabric when coated with the adhesive and dried, as well as a method for its manufacture and a filter using the element.Type: ApplicationFiled: April 1, 2002Publication date: May 5, 2005Applicant: Kuraray Chemical Co., Ltd.Inventors: Fumio Nakahara, Masaki Fukuura, Teruyo Fukuura, Takayuki Yoshikawa
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Patent number: 6554886Abstract: A porous adsorbent with a urea compound having a urea linkage within the molecule thereof and an inorganic acid and/or an organic acid supported on a porous support is shown. The porous adsorbent is capable of efficiently eliminating lower aldehydes at ordinary temperature for a prolonged period of time.Type: GrantFiled: August 22, 2001Date of Patent: April 29, 2003Assignee: Kuraray Chemical Co., Ltd.Inventors: Takayuki Yoshikawa, Masaki Fukuura, Shushi Nishimura
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Publication number: 20030041735Abstract: A primary object of the invention is to provide an adsorbent capable of efficiently eliminating lower aldehydes at ordinary temperature for a prolonged period of time and excellent in rate of elimination, heat resistance and safety.Type: ApplicationFiled: August 22, 2001Publication date: March 6, 2003Applicant: Kuraray Chemical Co., Ltd.Inventors: Takayuki Yoshikawa, Masaki Fukuura, Shushi Nishimura
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Patent number: 4746220Abstract: The outer periphery of a screw and the inside of a barrel of a screw type extruding or kneading machine are made of ceramics, to improve the abrasion and heat resistances thereof, so that the screw and the barrel will operate for a longer life time even if a hard material or a material containing a hard material is worked.Type: GrantFiled: April 15, 1986Date of Patent: May 24, 1988Assignees: Noritake Co., Limited, Mitsubishi Rayon Engineering Co., Ltd.Inventors: Kiyoshi Sukai, Keizo Ichii, Shigeru Takane, Takayuki Yoshikawa, Hiroshi Inada, Takao Yamada
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Patent number: D749008Type: GrantFiled: March 17, 2014Date of Patent: February 9, 2016Assignee: PATLITE CORPORATIONInventors: Daisuke Shigematsu, Takayuki Yoshikawa