Patents by Inventor Hiroe Yoshinobu
Hiroe Yoshinobu 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: 20230390731Abstract: One aspect of the present invention relates to a carbonaceous material that has a benzene adsorption amount of 30 to 60%, a vitamin B12 adsorption amount of more than 50.0 mg/g, and a micropore volume of mesopores of 0.13 to 0.30 cm3/g as calculated from a nitrogen adsorption isotherm by a BJH method.Type: ApplicationFiled: October 14, 2021Publication date: December 7, 2023Applicant: KURARAY CO., LTD.Inventors: Shuichi ISHIDA, Kiyoto OTSUKA, Tetsuya HANAMOTO, Hiroe YOSHINOBU
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Patent number: 11795066Abstract: One aspect of the present invention relates to a carbonaceous material having a BET specific surface area calculated from a nitrogen adsorption isotherm by a BET method, of 750 m2/g or more and 1000 m2/g or less, a ratio of a pore volume of pores of 0.3875 to 0.9125 nm calculated from the nitrogen adsorption isotherm by a HK method to a total pore volume calculated from the nitrogen adsorption isotherm by the HK method, of 80% or more, and an average pore diameter obtained by the following formula using the BET specific surface area and the total pore volume calculated from the nitrogen adsorption isotherm by the HK method, of 1.614 nm or less: D=4000×V/S (wherein D represents the average pore diameter (nm), V represents the total pore volume (mL/g), and S represents the specific surface area (m2/g)).Type: GrantFiled: June 25, 2021Date of Patent: October 24, 2023Assignee: KURARAY CO., LTD.Inventors: Tetsuya Hanamoto, Mitsunori Hitomi, Hiroe Yoshinobu
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Publication number: 20230149901Abstract: The adsorption filter according to the present invention is formed from a molded body including activated carbon and a binder, the pore volume of pores having a diameter of 10 ?m or greater in terms of the volume of the adsorption filter as measured through mercury intrusion being 0.10 cm3/cc to 0.39 cm3/ee.Type: ApplicationFiled: September 21, 2021Publication date: May 18, 2023Applicant: KURARAY CO., LTD.Inventors: Keita TAKAHASHI, Tetsuya HANAMOTO, Hiroe YOSHINOBU
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Publication number: 20230122106Abstract: One aspect of the present invention relates to a carbonaceous material having a BET specific surface area calculated from a nitrogen adsorption isotherm by a BET method, of 750 m2/g or more and 1000 m2/g or less, a ratio of a pore volume of pores of 0.3875 to 0.9125 nm calculated from the nitrogen adsorption isotherm by a HK method to a total pore volume calculated from the nitrogen adsorption isotherm by the HK method, of 80% or more, and an average pore diameter obtained by the following formula using the BET specific surface area and the total pore volume calculated from the nitrogen adsorption isotherm by the HK method, of 1.614 nm or less: D=4000×V/S (wherein D represents the average pore diameter (nm), V represents the total pore volume (mL/g), and S represents the specific surface area (m2/g)).Type: ApplicationFiled: June 25, 2021Publication date: April 20, 2023Applicant: KURARAY CO., LTD.Inventors: Tetsuya HANAMOTO, Mitsunori HITOMI, Hiroe YOSHINOBU
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Publication number: 20220242737Abstract: One aspect of the present invention relates to a carbonaceous material which has a benzene adsorption of 25 to 40% and a vitamin B12 adsorption of 13.0 to 50.0 mg/g, while having a pore volume of mesopores of 0.070 to 0.150 cm3/g as calculated from a nitrogen adsorption isotherm by means of a BJH method.Type: ApplicationFiled: April 22, 2020Publication date: August 4, 2022Applicant: KURARAY CO., LTD.Inventors: Shuichi ISHIDA, Tetsuya HANAMOTO, Hiroe YOSHINOBU
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Publication number: 20220219137Abstract: An aspect of the present invention relates to composite aggregate particles, which include a fine particle compound (a1) containing at least either an amorphous titanosilicate compound or an aluminosilicate compound, and a plastic powder (a2). The plastic powder (a2) is attached to at least a part of the surface of the fine particle compound (a1). The pore volume and the average particle size D50 of the composite aggregate particles satisfy the following formula: pore volume (ml/g)?0.0010×D50 (?m)+1.60.Type: ApplicationFiled: March 25, 2020Publication date: July 14, 2022Applicant: KURARAY CO., LTD.Inventors: Shuji KAWASAKI, Shuji MATSUNAGA, Tetsuya HANAMOTO, Hiroe YOSHINOBU
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Publication number: 20220176342Abstract: An embodiment of the present invention relates to an adsorbent which contains a fine particle compound containing an aluminosilicate compound and activated carbon particles, wherein the fine particle compound containing an aluminosilicate compound has a specific surface area of 300 m2/g or more and an average particle size of 10 to 200 ?m and includes particles having a particle size of 10 ?m or less in volume particle size distribution at 10 volume % or less, and the activated carbon particles have a mode diameter of 0.06 to 0.6 mm.Type: ApplicationFiled: March 25, 2020Publication date: June 9, 2022Applicant: KURARAY CO., LTD.Inventors: Shuji KAWASAKI, Shuji MATSUNAGA, Tetsuya HANAMOTO, Hiroe YOSHINOBU
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Publication number: 20220081322Abstract: One aspect of the present invention relates to a water purification filter including: a first support member; an activated carbon layer containing activated carbon and a fibrous binder; and a second support member. A 10% particle diameter (D10) of the activated carbon in a cumulative size distribution at volume standard is 19 to 90 ?m, a 50% particle diameter (D50) of the activated carbon in the cumulative size distribution at volume standard is 120 to 180 ?m, and a 90% particle diameter (D90) of the activated carbon in the cumulative size distribution at volume standard is 180 to 250 ?m. The first support member has an airflow resistance of 0.5 to 10 mm H2O. The second support member has an airflow resistance of 0.5 to 7 mm H2O. The activated carbon layer has a thickness of 3 to 10 mm.Type: ApplicationFiled: December 24, 2019Publication date: March 17, 2022Applicant: KURARAY CO., LTD.Inventors: Hiroe YOSHINOBU, Tetsuya HANAMOTO
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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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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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Patent number: 10023476Abstract: A water filter cartridge is reduced in fluctuation in filtration flow rate or in filtration performance due to activated carbon, and can exhibit stable performance even at the time of large scale production; and a water purifier is equipped with the water filter cartridge. A water filter cartridge having particulate activated carbon filled in a case for accommodating a filtering material in which the ratio of the total mass of particulate activated carbon having a particle size of 0.3 to 4.0 mm relative to the total mass of activated carbon is 97% by mass or more, and, in a particle size distribution which represents the relationship of the mass ratio of activated carbon relative to the particle size of activated carbon, a peak at which the mass ratio is 31% by mass or more does not appear in a particle size range of from 0.3 to 4.0 mm.Type: GrantFiled: June 5, 2015Date of Patent: July 17, 2018Assignees: Mitsubishi Chemical Corporation, Kuraray Co., Ltd.Inventors: Hatsumi Takeda, Masanori Itakura, Masanori Ito, Hiroe Yoshinobu
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Publication number: 20170341052Abstract: The present invention relates to an adsorption filter including activated carbon and a fibrillated fibrous binder, in which the activated carbon has a 0% particle diameter (D0) of 10 ?m or more in a volume-based cumulative particle-size distribution and has a 50% particle diameter (D50) of 90 to 200 ?m in the volume-based cumulative particle-size distribution; the fibrillated fibrous binder has a CSF value of 10 to 150 mL; and the adsorption filter includes 4 to 8 parts by mass of the fibrillated fibrous binder relative to 100 parts by mass of the activated carbon.Type: ApplicationFiled: November 10, 2015Publication date: November 30, 2017Applicant: KURARAY CO., LTD.Inventors: Hiroe YOSHINOBU, Tetsuya HANAMOTO
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Publication number: 20170144896Abstract: A water filter cartridge is reduced in fluctuation in filtration flow rate or in filtration performance due to activated carbon, and can exhibit stable performance even at the time of large scale production; and a water purifier is equipped with the water filter cartridge. A water filter cartridge having particulate activated carbon filled in a case for accommodating a filtering material in which the ratio of the total mass of particulate activated carbon having a particle size of 0.3 to 4.0 mm relative to the total mass of activated carbon is 97% by mass or more, and, in a particle size distribution which represents the relationship of the mass ratio of activated carbon relative to the particle size of activated carbon, a peak at which the mass ratio is 31% by mass or more does not appear in a particle size range of from 0.3 to 4.0 mm.Type: ApplicationFiled: June 5, 2015Publication date: May 25, 2017Applicants: Mitsubishi Rayon Co., Ltd., Kuraray Chemical Co., Ltd.Inventors: Hatsumi TAKEDA, Masanori ITAKURA, Masanori ITO, Hiroe YOSHINOBU
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Patent number: 9033158Abstract: The present invention provides molded activated carbon, and the molded activated carbon is produced by molding a mixture containing powdery activated carbon (a) having a median particle size of 80 ?m to 120 ?m and a standard deviation ?g of 1.3 to 1.9 in a particle size distribution and a fibrous binder (b). The molded activated carbon of the present invention has excellent removability for free residual chlorine, volatile organic compounds, CAT, and 2-MIB and excellent turbidity filterability, and is for use as a water purifier cartridge or the like.Type: GrantFiled: August 6, 2010Date of Patent: May 19, 2015Assignee: KURARAY CHEMICAL CO., LTD.Inventors: Hiroe Yoshinobu, Satoru Arita, Shuji Kawasaki
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Publication number: 20120132578Abstract: The present invention provides molded activated carbon, and the molded activated carbon is produced by molding a mixture containing powdery activated carbon (a) having a median particle size of 80 ?m to 120 ?m and a standard deviation ?g of 1.3 to 1.9 in a particle size distribution and a fibrous binder (b). The molded activated carbon of the present invention has excellent removability for free residual chlorine, volatile organic compounds, CAT, and 2-MIB and excellent turbidity filterability, and is for use as a water purifier cartridge or the like.Type: ApplicationFiled: August 6, 2010Publication date: May 31, 2012Applicant: KURARAY CHEMICAL CO., LTD.Inventors: Hiroe Yoshinobu, Satoru Arita, Shuji Kawasaki
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Publication number: 20060163151Abstract: A composite adsorbent which comprises a composite powder composed of a particulate compound, a plastic powder adhered to the compound, and at least one adsorptive substance selected from powdery, particulate and fibrous substances; a composite material adsorbent which comprises a particulate compound and at least one adsorptive substance selected from powdery, particulate and fibrous substances, both of which have the plastic powder adhered thereto; methods for producing composite adsorbents; a water purification material comprising a composite adsorbent; and a water purifier comprising a composite material. The composite adsorbent exhibits a reduced resistance when a liquid passes through it, and is excellent in performance capabilities for the removal of free chlorine, THM, a heavy metal and the like. The composite adsorbent also provides water transmitted through it with satisfactory clarity, and is less prone to cause discrepancies in performance capabilities between respective purifiers.Type: ApplicationFiled: October 28, 2003Publication date: July 27, 2006Applicant: Kuraray Chemical Co., Ltd.Inventors: Shuji Kawasaki, Haruo Nakada, Yasuhiro Tajima, Hiroe Yoshinobu, Erika Maeda, Kiyoto Otsuka