Patents by Inventor Tomohiro Ohkawa

Tomohiro Ohkawa 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).

  • Patent number: 7718099
    Abstract: A fine channel device capable of producing fine particles in an industrial scale, hardening the fine particles immediately after the production and recovering the fine particles from a medium without collapsing the shape of the produced fine particles, a fine particle producing method using the fine channel device and a solvent extraction method using the fine channel, are presented. The fine channel device comprises a fine channel provided with an inlet port and an inlet channel which feed a dispersion phase, an inlet port and an inlet channel which feed a continuous phase, and an outlet channel and an outlet port which discharge fine particles produced by the dispersion phase and the continuous phase, wherein the inlet channel for feeding the dispersion phase and the inlet channel for feeding the continuous phase are joined at an arbitrary angle, and the two inlet channels are connected to the outlet channel at the arbitrary angle.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: May 18, 2010
    Assignee: Tosoh Corporation
    Inventors: Akira Kawai, Koji Kitayama, Toru Futami, Katsuyuki Hara, Tomohiro Ohkawa, Keiichiro Nishizawa, Hideaki Kiriya, Hirotatsu Kusakabe
  • Publication number: 20100051543
    Abstract: A fine channel device including a fine channel provided with at least two inlet ports for feeding fluid, inlet channels communicated with the inlet ports, a confluent portion communicated with the inlet channels, a branch portion communicated with the fine channel, from which at least two outlet channels are branched to feed predetermined amounts of fluid, and outlet ports communicated with the outlet channels. The fine channel is provided with a plurality of partition walls arranged along a boundary formed by at least two kinds of fluid fed from the inlet ports so as not to cause mutual contamination of fluid. Furthermore, the plurality of partition walls are spaced apart at intervals in a flowing direction of fluid.
    Type: Application
    Filed: November 10, 2009
    Publication date: March 4, 2010
    Applicant: TOSOH CORPORATION
    Inventors: Toru FUTAMI, Tomohiro Ohkawa, Tomoyuki Oikawa, Akira Kawai, Koji Katayama, Keiichiro Nishizawa
  • Patent number: 7641871
    Abstract: A fine channel device including a fine channel provided with at least two inlet ports for feeding fluid, inlet channels communicated with the inlet ports, a confluent portion communicated with the inlet channels, a branch portion communicated with the fine channel, from which at least two outlet channels are branched to feed predetermined amounts of fluid, and outlet ports communicated with the outlet channels. The fine channel is provided with a plurality of partition walls arranged along a boundary formed by at least two kinds of fluid fed from the inlet ports so as not to cause mutual contamination of fluid. Furthermore, the plurality of partition walls are spaced apart at intervals in a flowing direction of fluid.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: January 5, 2010
    Assignee: Tosoh Corporation
    Inventors: Toru Futami, Tomohiro Ohkawa, Tomoyuki Oikawa, Akira Kawai, Koji Katayama, Keiichiro Nishizawa
  • Patent number: 7553434
    Abstract: A fine channel device capable of producing fine particles in an industrial scale, hardening the fine particles immediately after the production and recovering the fine particles from a medium without collapsing the shape of the produced fine particles, a fine particle producing method using the fine channel device and a solvent extraction method using the fine channel, are presented. The fine channel device comprises a fine channel provided with an inlet port and an inlet channel which feed a dispersion phase, an inlet port and an inlet channel which feed a continuous phase, and an outlet channel and an outlet port which discharge fine particles produced by the dispersion phase and the continuous phase, wherein the inlet channel for feeding the dispersion phase and the inlet channel for feeding the continuous phase are joined at an arbitrary angle, and the two inlet channels are connected to the outlet channel at the arbitrary angle.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: June 30, 2009
    Assignee: Tosoh Corporation
    Inventors: Akira Kawai, Koji Kitayama, Toru Futami, Katsuyuki Hara, Tomohiro Ohkawa, Keiichiro Nishizawa, Hideaki Kiriya, Hirotatsu Kusakabe
  • Publication number: 20080246172
    Abstract: A fine channel device capable of producing fine particles in an industrial scale, hardening the fine particles immediately after the production and recovering the fine particles from a medium without collapsing the shape of the produced fine particles, a fine particle producing method using the fine channel device and a solvent extraction method using the fine channel, are presented. The fine channel device comprises a fine channel provided with an inlet port and an inlet channel which feed a dispersion phase, an inlet port and an inlet channel which feed a continuous phase, and an outlet channel and an outlet port which discharge fine particles produced by the dispersion phase and the continuous phase, wherein the inlet channel for feeding the dispersion phase and the inlet channel for feeding the continuous phase are joined at an arbitrary angle, and the two inlet channels are connected to the outlet channel at the arbitrary angle.
    Type: Application
    Filed: January 30, 2008
    Publication date: October 9, 2008
    Applicant: TOSOH CORPORATION
    Inventors: Akira KAWAI, Koji Kitayama, Toru Futami, Katsuyuki Hara, Tomohiro Ohkawa, Keiichiro Nishizawa, Hideaki Kiriya, Hirotatsu Kusakabe
  • Patent number: 7338641
    Abstract: A fine channel device for performing a chemical treatment or for producing fine particles, capable of supplying a liquid to the fine channels evenly and producing products in a large quantity is provided. The fine channel device includes a storage space having a circular or polygonal recess for temporarily storing fluid, and supply channels formed in a radial direction from the storage space. A small chemical plant includes a plurality of the fine channel devices as fundamental constituents and a mechanism to supply at least one fluid and a mechanism to recover products produced.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: March 4, 2008
    Assignee: Tosoh Corporation
    Inventors: Akira Kawai, Koji Katayama, Toru Futami, Shinichi Matsumoto, Tomohiro Ohkawa, Tomoyuki Oikawa, Katsuyuki Hara
  • Publication number: 20060231136
    Abstract: A fine channel device capable of producing fine particles in an industrial scale, hardening the fine particles immediately after the production and recovering the fine particles from a medium without collapsing the shape of the produced fine particles, a fine particle producing method using the fine channel device and a solvent extraction method using the fine channel, are presented. The fine channel device comprises a fine channel provided with an inlet port and an inlet channel which feed a dispersion phase, an inlet port and an inlet channel which feed a continuous phase, and an outlet channel and an outlet port which discharge fine particles produced by the dispersion phase and the continuous phase, wherein the inlet channel for feeding the dispersion phase and the inlet channel for feeding the continuous phase are joined at an arbitrary angle, and the two inlet channels are connected to the outlet channel at the arbitrary angle.
    Type: Application
    Filed: June 16, 2006
    Publication date: October 19, 2006
    Applicant: TOSOH CORPORATION
    Inventors: Akira Kawai, Koji Kitayama, Toru Futami, Katsuyuki Hara, Tomohiro Ohkawa, Keiichiro Nishizawa, Hideaki Kiriya, Hirotatsu Kusakabe
  • Publication number: 20040028580
    Abstract: A fine channel device comprising a fine channel (19) provided with at least two inlet ports (11, 28, 29) for feeding fluid, inlet channels communicated with the inlet ports, a confluent portion (37) communicated with the inlet channels to feed the fluid, a branch portion (4) communicated with the fine channel, from which at least two outlet channels are branched to feed predetermined amounts of fluid, and outlet ports (12, 30, 31) communicated with the outlet channels, wherein the fine channel (19) is provided with a plurality of partition walls (22) along a boundary formed by at least two kinds of fluid (13, 14) fed from the inlet ports so as not to cause mutual contamination of fluid, whereby different kinds of fluid flowing in the fine channel in an adjacent state can form stably the fluid boundary and each kind of fluid can be discharged from a predetermined outlet port separately without causing the mutual contamination of fluid between adjacent flows of the fluid, is provided.
    Type: Application
    Filed: July 10, 2003
    Publication date: February 12, 2004
    Applicant: TOSOH CORPORATION
    Inventors: Toru Futami, Tomohiro Ohkawa, Tomoyuki Oikawa, Akira Kawai, Koji Katayama, Keiichiro Nishizawa
  • Publication number: 20040022690
    Abstract: A fine channel device for performing a chemical treatment or for producing fine particles, having the degree of integration of fine particles two-dimensionally and three-dimensionally and capable of supplying a liquid to all of the fine channels evenly and producing products in a large quantity, is provided, and a small-sized chemical plant capable of achieving a production quantity comparable to a conventional large-scale chemical plant comprising the fine channel device as a fundamental constituent factor, is provided.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 5, 2004
    Applicant: TOSOH CORPORATION
    Inventors: Akira Kawai, Koji Katayama, Toru Futami, Shinichi Matsumoto, Tomohiro Ohkawa, Tomoyuki Oikawa, Katsuyuki Hara
  • Publication number: 20030201022
    Abstract: A fine channel device capable of producing fine particles in an industrial scale, hardening the fine particles immediately after the production and recovering the fine particles from a medium without collapsing the shape of the produced fine particles, a fine particle producing method using the fine channel device and a solvent extraction method using the fine channel, are presented. The fine channel device comprises a fine channel provided with an inlet port and an inlet channel which feed a dispersion phase, an inlet port and an inlet channel which feed a continuous phase, and an outlet channel and an outlet port which discharge fine particles produced by the dispersion phase and the continuous phase, wherein the inlet channel for feeding the dispersion phase and the inlet channel for feeding the continuous phase are joined at an arbitrary angle, and the two inlet channels are connected to the outlet channel at the arbitrary angle.
    Type: Application
    Filed: April 23, 2003
    Publication date: October 30, 2003
    Applicant: TOSOH CORPORATION
    Inventors: Akira Kawai, Koji Kitayama, Toru Futami, Katsuyuki Hara, Tomohiro Ohkawa, Keiichiro Nishizawa, Hideaki Kiriya, Hirotatsu Kusakabe
  • Patent number: 5250996
    Abstract: A method for fixing a full color toner image by inserting a transfer medium to which a toner image is transferred, between a pair of rolls of a fixing apparatus, and pressing the medium therebetween, wherein the toner image is formed of a full color toner prepared by dispersing a colorant into a polyester resin containing a diol component represented by the following general formula (I) as a constituent and having a softening point of 100.degree. to 120.degree. C., as measured by a ring and ball method, a glass transition temperature of 55.degree. C. or more, a Gardner color scale of 2 or less and a haze value of 15 or less, and the fixing operation is conducted while supplying a functional group-containing organopolysiloxane having a viscosity of 10 to 100,000 cs at 25.degree. C.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: October 5, 1993
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yutaka Sugizaki, Hiroshi Takayama, Hideyuki Akagi, Takashi Imai, Susumu Saito, Yoshio Shoji, Yasuhiro Uehara, Masanori Ichimura, Tomohiro Ohkawa, Manabu Serizawa, Yasuo Yamamoto, Michio Take, Satoshi Inoue