Patents by Inventor Satoshi Sakurada
Satoshi Sakurada 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: 20240148895Abstract: An antibody-drug conjugate represented by formula (I): (where Ab is an antibody, X is a group represented by formula (X-1), formula (X-2) or formula (X-3): (where at the left represents the binding site with NH and at the right represents the binding side with D), D is a group represented by formula (D-1) or formula (D-2): (where represents the binding site with X), and n is in the range of about 1 to about 8).Type: ApplicationFiled: August 24, 2023Publication date: May 9, 2024Inventors: Masayuki MIYANO, Yuya NAKAZAWA, Kentaro ISO, Yuki YABE, Hirotatsu UMIHARA, Junichi TAGUCHI, Satoshi INOUE, Shuntaro TSUKAMOTO, Hiroyuki KOGAI, Atsumi YAMAGUCHI, Tsuyoshi AKAGI, Yohei MUKAI, Toshifumi HIRAYAMA, Masaki KATO, Toshiki MOCHIZUKI, Akihiko YAMAMOTO, Yuji YAMAMOTO, Takato SAKURADA
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Patent number: 6193986Abstract: An oily composition having excellent storability and forming no precipitate of an ingredient selected from the group of gelatin and gum arabic during the storage for a long period of time is provided. This composition is composed of a solid phase comprising an effective substance selected from the group consisting of a water-soluble substance and water-dispersible substance and 50 to 4,000 parts by weight, for 100 parts by weight of the effective substance, of the ingredient, and an oil phase comprising an oily component and an emulsifier, wherein the solid phase in the form of fine particles having an average particle diameter of not larger than 5 &mgr;m is dispersed in the oil phase, the water content of the solid phase is not higher than 30% by weight and the water content of the whole composition is not higher than 20% by weight.Type: GrantFiled: February 24, 1998Date of Patent: February 27, 2001Assignee: The Nisshin Oil Mills, Ltd.Inventor: Satoshi Sakurada
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Patent number: 6190680Abstract: An oily composition comprises a solid phase containing a water-soluble effective substance and/or a water-dispersible effective substance and an oil phase containing an oily component and an emulsifying agent having an HLB value of not more than 10, wherein the solid phase is dispersed in the oil phase in the form of a fine particulate state having an average particle size of not more than 5 &mgr;m and the water content or the aqueous alcohol solution content of the solid phase is not more than 30% by weight.Type: GrantFiled: March 31, 1999Date of Patent: February 20, 2001Assignee: The Nisshin Oil Mills, Ltd.Inventors: Satoshi Sakurada, Hisako Yoshino
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Patent number: 5098894Abstract: The binderless zeolite of this invention is comprised more than 90% of crystalline aluminosilicate which is produced by crystalized a binder contained in extrudate obtained by molding a mixture of crystalline aluminosilicate and binder of silica-alumina. This binderless zeolite can improve it's catalytic activity without weaken the strength of the extrudate, since a so-called secondary pores also act as catalyst. Especially, when more than 50% of TSZ zeolite is contained, the catalytic ability of binderless zeolite is so excellent that it is preferably used as the catalyst for selective cracking of n-parafins of alkylation of aromatics using alkylation agents such as alcohols and olefins.Type: GrantFiled: September 26, 1990Date of Patent: March 24, 1992Assignee: Toa Nenryo Kogyo K.K.Inventors: Satoshi Sakurada, Nobuaki Tagaya, Tadashi Miura, Tsugio Maeshima, Takao Hashimoto
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Patent number: 5075277Abstract: In the steam reforming catalyst for hydrocarbon according to the present invention, catalyst metal is supported on or in the surface layer of a zirconia carrier containing yttria and having a crystal structure primarily consisting of tetragonal system or tetragonal and cubic systems. Compared with conventional steam reforming catalyst, it has higher reaction efficiency and suppresses carbon deposition extensively even when steam/carbon ratio is low and exhibits higher hydrogen generation efficiency and higher catalyst strength. Particularly, it is suitable as a catalyst for internal reforming type fuel cell.In the steam reforming catalyst of hydrocarbon of this invention, metal catalyst can be effectively utilized by supporting metal catalyst only on surface layer of zirconia carrier.Type: GrantFiled: August 24, 1990Date of Patent: December 24, 1991Assignees: Tonen Corporation, Petroleum Energy CenterInventors: Akira Saiai, Yasuharu Yokoyama, Satoshi Sakurada, Takao Hashimoto, Tomoko Segawa, Fumiya Ishizaki
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Patent number: 4977120Abstract: The binderless zeolite of this invention is comprised more than 90% of crystalline aluminosilicate which is produced by crystalize a binder contained in extrudate obtained by molding a mixture of crystalline aluminosilicate and binder of silica-alumina. This binderless zeolite can improve it's catalytic activity without weaken the strength of the extrudate, since a so-called secondary pores also act as catalyst. Especially, when more than 50% of TSZ zeolite is contained, the catalytic ability of binderless zeolite is so excellent that it is preferably used as the catalyst for selective cracking of n-parafins or alkylation of aromatics using alkylation agents such as alcohols and olefins.Type: GrantFiled: April 13, 1988Date of Patent: December 11, 1990Assignee: Toa Nenryo Kogyo K.K.Inventors: Satoshi Sakurada, Nobuaki Tagaya, Tadashi Miura, Tsugio Maeshima, Takao Hashimoto
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Patent number: 4950562Abstract: The present invention provides a solid electrolyte type of fuel cell of a planar type structure comprising a plurality of solid electrolyte plates, each being in the form of a flat plate and having a porous cathodic layer on one side and a porous anodic layer on the other side, which are laminated together through an interconnector plate provided in both its sides with grooves defining gas passages, wherein oxidizing agent and fuel gases are fed through said passages to the cathodic and anodic sides, thereby reducing the length of a current path running through regions of high resistance, increasing the degree of integration and improving reliability. By using heat-resistant parts for the interconnectors, cathodes and anodes, it is also possible to improve the resistance to oxidation and reduction as well as durability and obtain low resistance.Type: GrantFiled: April 19, 1989Date of Patent: August 21, 1990Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Toshihiko Yoshida, Tsukasa Shima, Fumiya Ishizaki, Hiroyuki Iwasaki, Isao Mukaizawa, Yoshiyuki Someya, Satoshi Sakurada, Osamu Yamamoto
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Patent number: 4664775Abstract: This invention relates to a method for catalytically manufacturing a low pour point petroleum product from distillates of crude oil, and more particularly to a method for economically manufacturing a low pour point petroleum product, such as the insulating oil, the lubricating oil used for various types of freezing devices, or the base oil for such lubricating oil, from a paraffin-based crude oil as the starting material without using any special rare crude oil such as naphthene-based crude oil. The catalyst comprises zeolite TSZ.Type: GrantFiled: July 26, 1983Date of Patent: May 12, 1987Assignee: TOA Nenryo Kogyo Kabushiki KaishaInventors: Tsugio Maejima, Wataru Kobayashi, Kenji Ashibe, Nobuaki Tagaya, Satoshi Sakurada
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Patent number: 4513166Abstract: 1-Butene and isobutene are effectively separated without isomerization of 1-butene by contacting an isobutene-containing hydrocarbon mixture with a solid acid catalyst having a solid acid quantity of 0.05 to 0.25 mmol/g of solid acid catalyst, represented by the adsorption quantity of pyridine, thus low-polymerizing selectively isobutene and then separating the low polymers of isobutene from 1-butene.Type: GrantFiled: April 6, 1984Date of Patent: April 23, 1985Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Satoshi Sakurada, Takao Hashimoto, Nobuaki Tagaya, Tsugio Maeshima, Kayako Ueda, Masahiro Kokubo
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Patent number: 4454367Abstract: 1-Butane and isobutene are effectively separated without isomerization of 1-butene by contacting an isobutene-containing hydrocarbon mixture with a solid acid catalyst having a solid acid quantity of 0.05 to 0.25 mmol/g of solid acid catalyst, represented by the adsorption quantity of pyridine, thus low-polymerizing selectively isobutene and then separating the low polymers of isobutene from 1-butene.Type: GrantFiled: March 15, 1983Date of Patent: June 12, 1984Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Satoshi Sakurada, Takao Hashimoto, Nobuaki Tagaya, Tsugio Maeshima, Kayako Ueda, Masahiro Kokubo
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Patent number: 4199555Abstract: Nitrogen oxides are removed from gaseous mixtures comprising the same by contacting with a catalyst comprising a base metal component carried on a silica-alumina base in the presence of ammonia.Type: GrantFiled: August 23, 1978Date of Patent: April 22, 1980Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Takuji Itoh, Satoshi Sakurada, Nobuaki Tagaya
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Patent number: 4186078Abstract: A catalyst and process are described for hydrofining petroleum wax comprising contacting the wax with hydrogen in the presence of a catalyst comprising at least one metal hydrogenating component on a porous alumina/silica carrier containing from about 0.2 to 5 wt.% of an alkali metal component, the catalyst having a specific surface area of about 200 to 300 m.sup.2 /g and being further characterized in that (a) the volume of pores having a diameter in the range of 60 to 150 A is greater than 80% of the volume of pores having a diameter in the range of 0 to 150 A and (b) the volume of pores having a diameter in the range of 0 to 600 A is in the range of about 0.45 to 0.60 ml/g.Type: GrantFiled: April 20, 1978Date of Patent: January 29, 1980Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Takuji Itoh, Satoshi Sakurada, Shohei Okano, Takashi Obayashi, Takeo Toyoizumi, Osami Iwata
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Patent number: 4139494Abstract: A catalyst and process are described for hydrofining petroleum wax comprising contacting the wax with hydrogen in the presence of a catalyst comprising at least one metal hydrogenating component on a porous alumina/silica carrier containing from about 0.2 to 5 wt.% of an alkali metal component, the catalyst having a specific surface area of about 200 to 300 m.sup.2 /g and being further characterized in that (a) the volume of pores having a diameter in the range of 60 to 150 A is greater than 80% of the volume of pores having a diameter in the range of 0 to 150 A and (b) the volume of pores having a diameter in the range of 0 to 600 A is in the range of about 0.45 to 0.60 ml/g.Type: GrantFiled: September 12, 1977Date of Patent: February 13, 1979Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Takuji Itoh, Satoshi Sakurada, Shohei Okano, Takashi Obayashi, Takeo Toyoizumi, Osami Iwata
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Patent number: 4134856Abstract: A hydro-refining catalyst comprising at least one hydrogenation metal component supported on an alumina or alumina-containing carrier containing from about 5 to about 25 wt. % silica, said catalyst having a specific surface area in the range of from about 250 to about 300 m.sup.2 /g and a pore volume distribution characterized in that (1) the volume of pores having a diameter of 60 to 150 A is at least about 80% of the volume of pores having a diameter of 0 to 150 A, (2) the volume of pores having a diameter of 150 to 300 A is less than about 20% of the volume of pores of 0 to 300 A, (3) the volume of pores having a diameter of 150 to 2,000 A is less than about 0.01 ml/g, (4) the volume of pores having a diameter of 0 to 600 A is in the range of from about 0.45 to about 0.60 ml/g. The catalyst is used in the hydro-refining of heavy hydrocarbon oils containing sulfur, nitrogen and metal contaminants.Type: GrantFiled: December 3, 1976Date of Patent: January 16, 1979Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Takuji Itoh, Satoshi Sakurada, Shohei Okano, Takashi Obayashi
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Patent number: 4124536Abstract: Nitrogen oxides are removed from gaseous mixtures comprising the same by contacting with a catalyst comprising a base metal component carried on a silica-alumina base in the presence of ammonia.Type: GrantFiled: July 13, 1976Date of Patent: November 7, 1978Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Takuji Itoh, Satoshi Sakurada, Nobuaki Tagaya
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Patent number: 4008149Abstract: A hydro-refining catalyst comprising at least one hydrogenation metal component supported on an alumina or alumina-containing carrier containing from about 5 to about 25 wt. % silica, said catalyst having a specific surface area in the range of from about 250 to about 300 m.sup.2 /g and a pore volume distribution characterized in that (1) the volume of pores having a diameter of 60 to 150 A is at least about 80% of the volume of pores having a diameter of 0 to 150 A, (2) the volume of pores having a diameter of 150 to 300 A is less than about 20% of the volume of pores of 0 to 300 A, (3) the volume of pores having a diameter of 150 to 2,000 A is less than about 0.01 ml/g, (4) the volume of pores having a diameter of 0 to 600 A is in the range of from about 0.45 to about 0.60 ml/g. The catalyst is used in the hydro-refining of heavy hydrocarbon oils containing sulfur, nitrogen and metal contaminants.Type: GrantFiled: March 19, 1976Date of Patent: February 15, 1977Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Takuji Itoh, Satoshi Sakurada, Shohei Okano, Takashi Obayashi