Patents by Inventor Ken Furukawa

Ken Furukawa 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: 11970006
    Abstract: The object is to provide a liquid container that can prevent foreign substances from flowing into a liquid ejection apparatus with a simple configuration. The liquid container for containing liquid to be ejected by a liquid ejection apparatus includes: a bag body configured to contain the liquid inside; and a flow path for supplying the liquid contained inside the bag body to the liquid ejection apparatus, wherein, inside a peripheral wall of the flow path, a first capturing unit extending in an anti-gravitational direction and a second capturing unit extending in a gravitational direction are arranged at different positions with respect to a direction in which the liquid flows.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: April 30, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yu Katano, Hirofumi Ota, Ken Ikegame, Yasuto Kodera, Masao Furukawa
  • Publication number: 20240104587
    Abstract: In a familiarity degree estimation apparatus, a first video process unit calculates a time while a hand being viewed, which is a time when a customer is viewing the hand. A second video process unit calculates a time while an item being held, which is a time when the customer is holding an item. A familiarity degree estimation unit calculates a time while the item being viewed based on the time while a hand being viewed and the time while the item being held, and estimates that the longer the time while the item being viewed, the lower the degree of familiarity of the customer with respect to the item.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 28, 2024
    Applicant: NEC Corporation
    Inventors: Azusa FURUKAWA, Kan ARAI, Kei SHIBUYA, Hiroshi HASHIMOTO, Ken HANAZAWA, Makiko AKIGUCHI
  • Publication number: 20240095671
    Abstract: An item management apparatus manages the number of items displayed on an item shelf. An acquisition unit acquires an ideal quantity indicating an ideal number of items to be displayed, and a current quantity indicating the number of items being actually displayed on the item shelf. A detection unit detects the number of times of taking out and placing back an item with respect to the item shelf. An ideal quantity correction unit corrects the ideal quantity based on the current quantity and the number of times of taking out and placing back the item.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 21, 2024
    Applicant: NEC Corporation
    Inventors: Azusa FURUKAWA, Kan ARAI, Kei SHIBUYA, Hiroshi HASHIMOTO, Ken HANAZAWA, Makiko AKIGUCHI
  • Publication number: 20240087359
    Abstract: A customer analysis apparatus (10) includes an image acquisition unit (110) and an image processing unit (120). The image acquisition unit (110) acquires a first image generated by a first image capture unit (22) and a second image generated by a second image capture unit (24). The image processing unit (120) processes the first image and the second image. More specifically, the image processing unit (120) generates product information indicating a product (50) taken out from a product shelf (40), by processing the first image and the second image. Further, the image processing unit (120) generates customer attribute information of a customer taking out the product (50), by processing the first image. Then, the image processing unit (120) causes a result storage unit (130) to store the product information and the customer attribute information in association with each other.
    Type: Application
    Filed: November 17, 2023
    Publication date: March 14, 2024
    Applicant: NEC Corporation
    Inventors: Makiko AKIGUCHI, Azusa FURUKAWA, Kei SHIBUYA, Kan ARAI, Hiroshi HASHIMOTO, Ken HANAZAWA
  • Publication number: 20240086946
    Abstract: In a familiarity degree estimation apparatus, a first video process unit calculates a time while a hand being viewed, which is a time when a customer is viewing the hand. A second video process unit calculates a time while an item being held, which is a time when the customer is holding an item. A familiarity degree estimation unit calculates a time while the item being viewed based on the time while a hand being viewed and the time while the item being held, and estimates that the longer the time while the item being viewed, the lower the degree of familiarity of the customer with respect to the item.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Applicant: NEC Corporation
    Inventors: Azusa FURUKAWA, Kan ARAI, Kei SHIBUYA, Hiroshi HASHIMOTO, Ken HANAZAWA, Makiko AKIGUCHI
  • Patent number: 8207144
    Abstract: The present invention relates to a composition comprising a plurality of sodium salts represented by the formula (I): wherein, m1, n1, m2 and n2 respectively and independently represent a positive number between 0 and 2, provided that m1+n1=2, m2+n2=2, 0<m1+m2<4 and 0<n1+n2<4, and a method for producing the same, and a method for inhibiting the decomposition of a sodium salt represented by general formula (IV): comprising: having the sodium salt represented by general formula (IV) in the presence of the sodium salts represented by formula (I), and according to the present invention the stability over time of the sodium salt represented by general formula (IV) is improved.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: June 26, 2012
    Assignee: Eisai R & D Management Co., Ltd.
    Inventors: Shin Sakurai, Ken Furukawa, Kimihiro Matsuo, Kenichi Tagami
  • Publication number: 20100152429
    Abstract: Disclosed are a sodium salt represented by the average formula (I) below, and a method for producing such a sodium salt. (In the formula, m1, n1, m2 and n2 independently represent 0 or a positive number not greater than 2, while satisfying m1+n1=2, m2+n2=2, 0<m1+m2<4 and 0<n1+n2<4.) Also disclosed is a decomposition suppression method which makes a sodium salt represented by average formula (I) coexist with a sodium salt represented by the general formula (IV) below. This method enables improvement of long-term stability of a sodium salt represented by general formula (IV).
    Type: Application
    Filed: November 21, 2007
    Publication date: June 17, 2010
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Shin Sakurai, Ken Furukawa, Kimihiro Matsuo, Kenichi Tagami
  • Publication number: 20080227991
    Abstract: The present invention relates to a sodium salt represented by average formula (I): (wherein, m1, n1, m2 and n2 respectively and independently represent a positive number of 0 0r 2 or less, provided that m1+n1=2, m2+n2=2, 0<m1+m2<4 and 0<n1+n2<4), a method for producing the same, and a method for inhibiting decomposition of a sodium salt represented by general formula (IV): [CHEMICAL 4] comprising: having the sodium salt represented by general formula (IV) in the presence of the sodium salt represented by average formula (I), and according to the present invention the stability over time of the sodium salt represented by general formula (IV) is improved.
    Type: Application
    Filed: November 21, 2007
    Publication date: September 18, 2008
    Inventors: Shin Sakurai, Ken Furukawa, Kimihiro Matsuo, Kenichi Tagami
  • Patent number: 7375236
    Abstract: In the present invention, the methods of producing a fluorinated cyclic benzamidine derivative (A), or a salt thereof, comprise the step of reacting a specific novel compound with ammonia or imide. The methods of this invention for producing a morpholine-substituted phenacyl derivative (B), or a salt thereof, comprise reaction of a specific novel compound with morpholine, reaction of the product with a halogenating reagent, and deketalization of the product. The methods of this invention for a producing cyclic benzamidine derivative (C), or a salt thereof, comprise the step of coupling compound (A), or a salt thereof, with compound (B), or a salt thereof, in the presence of an ether or a hydrocarbon.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: May 20, 2008
    Assignee: Eisai Co., Ltd.
    Inventors: Naoyuki Shimomura, Manabu Sasho, Akio Kayano, Kazuhiro Yoshizawa, Masahiko Tsujii, Hiroshi Kuroda, Ken Furukawa
  • Publication number: 20060058370
    Abstract: In the present invention, the methods of producing a fluorinated cyclic benzamidine derivative (A), or a salt thereof, comprise the step of reacting a specific novel compound with ammonia or imide. The methods of this invention for producing a morpholine-substituted phenacyl derivative (B), or a salt thereof, comprise reaction of a specific novel compound with morpholine, reaction of the product with a halogenating reagent, and deketalization of the product. The methods of this invention for a producing cyclic benzamidine derivative (C), or a salt thereof, comprise the step of coupling compound (A), or a salt thereof, with compound (B), or a salt thereof, in the presence of an ether or a hydrocarbon.
    Type: Application
    Filed: August 18, 2005
    Publication date: March 16, 2006
    Applicant: Eisai Co., Ltd.
    Inventors: Naoyuki Shimomura, Manabu Sasho, Akio Kayano, Kazuhiro Yoshizawa, Masahiko Tsujii, Hiroshi Kuroda, Ken Furukawa
  • Patent number: 5700938
    Abstract: The present invention provides an industrially advantageous process for preparing a 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo?4,5-b!pyridine derivative represented by the following formula (II) which is a precursor of an antagonist against an angiotensin II receptor useful as an antihypertensive drug, a biphenyl derivative which is a precursor of the substituent of the pyridine derivative, a process for the preparation thereof, and an intermediate useful for the preparation of the biphenyl derivative: ##STR1## The 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo?4,5-b!pyridine derivative can be prepared in a high yield according to the present invention from a 2-amino-5-halogeno-3-nitropyridine derivative through amidation, N-alkylation and reductive cyclization. The halogen atom introduced at the 5-position as a protective group against nitration can be eliminated simultaneously in the step which is conducted thereafter. Thus, this process is industrially advantageous.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 23, 1997
    Assignees: Eisai Co., Ltd., Eisai Chemical Co., Ltd.
    Inventors: Yoshio Urawa, Ken Furukawa, Toshikazu Shimizu, Yoji Yamagishi, Tomio Tsurugi, Tomio Ichino
  • Patent number: 5637716
    Abstract: Intermediates for the preparation of benzothiazole derivatives useful for the prevention and treatment of diseases for which an inhibitory action against the production of leukotriene and thromboxane is efficacious, and industrially advantageous processes for the preparation of the intermediates.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: June 10, 1997
    Assignees: Eisai Co., Ltd., Eisai Chemical Co., Ltd.
    Inventors: Yuuki Komatsu, Norio Minami, Ken Furukawa, Hiroshi Nishimura, Yoji Yamagishi
  • Patent number: 5618969
    Abstract: The present invention provides an industrially advantageous process for preparing a 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative represented by the following formula (II) which is a precursor of an antagonist against an angiotensin II receptor useful as an antihypertensive drug, a biphenyl derivative which is a precursor of the substituent of the pyridine derivative, a process for the preparation thereof, and an intermediate useful for the preparation of the biphenyl derivative: ##STR1##
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: April 8, 1997
    Assignees: Eisai Co., Ltd., Eisai Chemical
    Inventors: Yoshio Urawa, Ken Furukawa, Toshikazu Shimizu, Yoji Yamagishi, Tomio Tsurugi, Tomio Ichino
  • Patent number: 5608068
    Abstract: The present invention provides an industrially advantageous process for preparing a 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative represented by the following formula (II) which is a precursor of an antagonist against an angiotensin II receptor useful as an antihypertensive drug, a biphenyl derivative which is a precursor of the substituent of the pyridine derivative, a process for the preparation thereof, and an intermediate useful for the preparation of the biphenyl derivative: ##STR1## The 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo-[4,5-b]pyridine derivative can be prepared in a high yield according to the present invention from a 2-amino-5-halogeno-3-nitropyridine derivative through amidation, N-alkylation and reductive cyclization. The halogen atom introduced at the 5-position as a protective group against nitration can be eliminated simultaneously in the step which is conducted thereafter. Thus, this process is industrially advantageous.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 4, 1997
    Assignees: Eisai Co., Ltd., Eisai Chemical Co., Ltd.
    Inventors: Yoshio Urawa, Ken Furukawa, Toshikazu Shimizu, Yoji Yamagishi, Tomio Tsurugi, Tomio Ichino
  • Patent number: 5587504
    Abstract: The present invention provides an industrially advantageous process for preparing a 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative represented by the following formula (II) which is a precursor of an antagonist against an angiotensin II receptor useful as an antihypertensive drug, a biphenyl derivative which is a precursor of the substituent of the pyridine derivative, a process for the preparation thereof, and an intermediate useful for the preparation of the biphenyl derivative: ##STR1## The 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative can be prepared in a high yield according to the present invention from a 2-amino-5-halogeno-3-nitropyridine derivative through amidation, N-alkylation and reductive cyclization.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: December 24, 1996
    Assignees: Eisai Co., Ltd., Eisai Chemical Co., Ltd.
    Inventors: Yoshio Urawa, Ken Furukawa, Toshikazu Shimizu, Yoji Yamagishi, Tomio Tsurugi, Tomio Ichino
  • Patent number: 5583229
    Abstract: The present invention provides an industrially advantageous process for preparing a 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative represented by the following formula (II) which is a precursor of an antagonist against an angiotensin II receptor useful as an antihypertensive drug, a biphenyl derivative which is a precursor of the substituent of the pyridine derivative, a process for the preparation thereof, and an intermediate useful for the preparation of the biphenyl derivative: ##STR1##
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: December 10, 1996
    Assignee: Eisai Co., Ltd.
    Inventors: Yoshio Urawa, Ken Furukawa, Toshikazu Shimizu, Yoji Yamagishi, Tomio Tsurugi, Tomio Ichino
  • Patent number: 5559236
    Abstract: The present invention provides an industrially advantageous process for preparing a 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative represented by the following formula (II) which is a precursor of an antagonist against an angiotensin II receptor useful as an antihypertensive drug, a biphenyl derivative which is a precursor of the substituent of the pyridine derivative, a process for the preparation thereof, and an intermediate useful for the preparation of the biphenyl derivative: ##STR1## The 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo-[4,5-b]pyridine derivative can be prepared in a high yield according to the present invention from a 2-amino-5-halogeno-3-nitropyridine derivative through amidation, N-alkylation and reductive cyclization. The halogen atom introduced at the 5-position as a protective group against nitration can be eliminated simultaneously in the step which is conducted thereafter. Thus, this process is industrially advantageous.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 24, 1996
    Assignees: Eisai Co., Ltd., Eisai Chemical Co., Ltd.
    Inventors: Yoshio Urawa, Ken Furukawa, Toshikazu Shimizu, Yoji Yamagishi, Tomio Tsurugi, Tomio Ichino
  • Patent number: 5557002
    Abstract: The present invention provides an industrially advantageous process for preparing a 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative represented by the following formula (II) which is a precursor of an antagonist against an angiotensin II receptor useful as an antihypertensive drug, a biphenyl derivative which is a precursor of the substituent of the pyridine derivative, a process for the preparation thereof, and an intermediate useful for the preparation of the biphenyl derivative: ##STR1## The 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative can be prepared in a high yield according to the present invention from a 2-amino-5-halogeno-3-nitropyridine derivative through amidation, N-alkylation and reductive cyclization. The halogen atom introduced at the 5-position as a protective group against nitration can be eliminated simultaneously in the step which is conducted thereafter. Thus, this process is industrially advantageous.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 17, 1996
    Assignees: Eisai Co., Ltd., Eisai Chemical Co., Ltd.
    Inventors: Yoshio Urawa, Ken Furukawa, Toshikazu Shimizu, Yoji Yamagishi, Tomio Tsurugi, Tomio Ichino
  • Patent number: 5554757
    Abstract: The present invention provides an industrially advantageous process for preparing a 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo[4,5-b]pyridine derivative represented by the following formula (II) which is a precursor of an antagonist against an angiotensin II receptor useful as an antihypertensive drug, a biphenyl derivative which is a precursor of the substituent of the pyridine derivative, a process for the preparation thereof, and an intermediate useful for the preparation of the biphenyl derivative: ##STR1## The 2-alkyl-3-(biphenyl-4-yl)methyl-3H-imidazo-[4,5-b]pyridine derivative can be prepared in a high yield according to the present invention from a 2-amino-5-halogeno-3-nitropyridine derivative through amidation, N-alkylation and reductive cyclization. The halogen atom introduced at the 5-position as a protective group against nitration can be eliminated simultaneously in the step which is conducted thereafter. Thus, this process is industrially advantageous.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 10, 1996
    Assignee: Eisai Co., Ltd.
    Inventors: Yoshio Urawa, Ken Furukawa, Toshikazu Shimizu, Yoji Yamagishi, Tomio Tsurugi, Tomio Ichino
  • Patent number: 4143719
    Abstract: A multi-vibro pile hammer comprising a plurality of vibro pile hammers having vibration generating units adapted to generate vibrations with different phases and in synchronism with one another, and the arrangement is made such that vibrations to be transmitted through the ground between the piles or sheet piles held by the hammers so as to be driven underground or pulled out therefrom can be counteracted thereby reducing the vibration transmitting region remarkably.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: March 13, 1979
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Ken Furukawa, Sadao Nunotani