公开(公告)号：US11090644B2

公开(公告)日：2021-08-17

申请号：US16471345

申请日：2017-12-07

申请人： Kuraray Co., Ltd.

发明人： Keita Takahashi ,  Takayuki Yoshikawa ,  Mitsunori Hitomi ,  Takayuki Yamada

IPC分类号： B01J21/18 ,  B01J23/745 ,  B01J35/00 ,  B01J37/08 ,  B01J37/10 ,  C01B32/00 ,  C01B32/30 ,  C01B32/318 ,  C01B32/336 ,  C02F1/72 ,  C02F101/12 ,  C02F101/16

摘要： 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.

公开(公告)号：US11430614B2

公开(公告)日：2022-08-30

申请号：US16612204

申请日：2018-05-08

申请人： KURARAY CO., LTD.

发明人： Shuichi Ishida ,  Keita Takahashi ,  Hiroaki Kitatomi ,  Akinori Yamabata ,  Yasuyuki Hirota

IPC分类号： C01B32/318 ,  C01B32/378 ,  C01B32/384 ,  H01G11/34 ,  H01G11/86

摘要： The present invention relates to a coconut shell-derived modified activated carbon having a BET specific surface area of 1400 to 2000 m2/g, a value of hydrogen content/carbon content of 0.0015 to 0.0055, and intra-skeletal oxygen of 0.9 mass % or less.

公开(公告)号：US10987650B2

公开(公告)日：2021-04-27

申请号：US15733236

申请日：2018-12-18

申请人： KURARAY CO., LTD.

发明人： Keita Takahashi ,  Takayuki Yoshikawa ,  Tetsuya Hanamoto ,  Hiroe Yoshinobu ,  Takayuki Yamada

IPC分类号： B01J20/20 ,  B01J20/28 ,  C02F1/28 ,  C02F101/12 ,  C02F101/32

摘要： 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 μm is 0.60 ml/g or less as measured by mercury intrusion porosimetry.

公开(公告)号：US10974224B2

公开(公告)日：2021-04-13

申请号：US15733219

申请日：2018-12-17

申请人： KURARAY CO., LTD.

发明人： Keita Takahashi ,  Takayuki Yoshikawa ,  Takayuki Yamada

IPC分类号： C01B31/08 ,  B01J21/18 ,  C01B32/318 ,  B01J23/44 ,  B01J35/00 ,  C01B32/30

摘要： 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.

公开(公告)号：US12064745B2

公开(公告)日：2024-08-20

申请号：US17446501

申请日：2021-08-31

申请人： CALGON CARBON CORPORATION ,  KURARAY CO., LTD.

发明人： Jason P. Mazzoccoli ,  Ryan W. Walker ,  Walter G. Tramposch ,  Keita Takahashi ,  Aya Benzaki

IPC分类号： B01J20/20 ,  B01J20/02 ,  B01J20/28 ,  B01J20/30 ,  C02F1/28 ,  C02F101/16

CPC分类号： B01J20/20 ,  B01J20/0229 ,  B01J20/0259 ,  B01J20/3078 ,  B01J20/3085 ,  C02F1/283 ,  B01J20/2808 ,  B01J2220/42 ,  B01J2220/4806 ,  B01J2220/4825 ,  B01J2220/4881 ,  C02F2101/16 ,  C02F2303/04

摘要： Carbonaceous material that is activated to form precursor activated carbon is further enhanced by doping with iron and nitrogen and calcining. The resultant sorbent material has excellent catalytic properties which are useful in the field of fluid purification. The further enhancement can be performed in a single stage process or a dual stage process. The carbonaceous material includes those obtained from coal, wood, or coconut shells. The described treatment processes result in a sorbent material that has excellent performance in removing chloramine and similar compounds from fluids such as water that is intended for drinking.

公开(公告)号：US11065603B2

公开(公告)日：2021-07-20

申请号：US16963666

申请日：2019-12-20

申请人： KURARAY CO., LTD.

发明人： Keita Takahashi ,  Takayuki Yoshikawa ,  Mitsunori Hitomi ,  Takayuki Yamada

IPC分类号： C01B32/336 ,  B01J21/18 ,  C01B32/318 ,  B01J37/08 ,  C02F1/70 ,  B01J37/10 ,  C02F101/38 ,  C02F101/36

摘要： 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.