Patents by Inventor Tetsuji Kawai

Tetsuji Kawai 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: 10952343
    Abstract: An assembled body attachable to an attached body includes: a main body member made of a rigid material; an annular seal member made of a material that is more easily deformed than the main body member, and assembled on the main body member to close a gap between the main body member and the attached body; and a cover member assembled on the main body member. The main body member is formed with an attachment portion to be disposed inside the attached body, and the cover member is installed on the attachment portion. A seal member attachment region is assigned between a part of the main body member and the cover member, and the seal member attachment region is defined at least by an exposed surface of the attachment portion that is not covered by the cover member and one end surface of the cover member.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: March 16, 2021
    Assignee: TOKAI KOGYO CO., LTD.
    Inventor: Tetsuji Kawai
  • Publication number: 20200288595
    Abstract: An assembled body attachable to an attached body includes: a main body member made of a rigid material; an annular seal member made of a material that is more easily deformed than the main body member, and assembled on the main body member to close a gap between the main body member and the attached body; and a cover member assembled on the main body member. The main body member is formed with an attachment portion to be disposed inside the attached body, and the cover member is installed on the attachment portion. A seal member attachment region is assigned between a part of the main body member and the cover member, and the seal member attachment region is defined at least by an exposed surface of the attachment portion that is not covered by the cover member and one end surface of the cover member.
    Type: Application
    Filed: October 19, 2018
    Publication date: September 10, 2020
    Applicant: TOKAI KOGYO CO., LTD.
    Inventor: Tetsuji KAWAI
  • Publication number: 20120006695
    Abstract: A contact lens distribution/storage method with which contact lenses can be reliably stored in a small space. To achieve this with a method for storing contact lenses for distribution using a contact lens package containing a packaging solution and the contact lens, a soft contact lens is used as the contact lens. A fluid volume of the packaging solution is 0.1 to 1.0 mL, and a buffering capability of the packaging solution is 3 mmol/L or greater measured in buffering capacity.
    Type: Application
    Filed: March 12, 2009
    Publication date: January 12, 2012
    Applicant: MENICON CO., LTD.
    Inventors: Tetsuji Kawai, Yuji Ito
  • Patent number: 7837327
    Abstract: It is an object to provide a novel system for supporting contact lens users, who has not been provided with an after-selling support sufficiently, which is able to provide an appropriate support to individual contact lens user so that he can use contact lenses with comfortable. In order to attain the object, an image signal of the user's currently used contact lenses (20) acquired by a user client apparatus (18) is transmitted via communication network means (38), to a server apparatus (12) of a supporting entity (10). The server apparatus (12) then obtains lens condition evaluation data, which are stored in memory means (14) and transmitted via the communication network means (38) to the user client apparatus (18) so that the user (16) can be provided with the lens condition evaluation data.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: November 23, 2010
    Assignee: Menicon Co., Ltd.
    Inventors: Hidenari Tanaka, Kazuhiko Nakada, Hiroaki Suzuki, Sadanori Ohno, Tetsuji Kawai
  • Patent number: 7270716
    Abstract: It is intended to provide a method of selecting a contact lens suitable for a wearer and/or a care system therefor, by which the occurrence of problems (for example, worsening in the feel during wearing, lowering in the oxygen permeability of the lens, shortening in the lens life, lowering in the visual acuity, corneal injury, etc.) can be minimized to thereby ensure a high safety for the eye, namely, a method which comprises collecting the lacrimal fluid of a wearer, detecting the protein content and/or the lipid content in the lacrimal fluid thus obtained (Step S5), estimating the dirt adhesion characteristics of the wearer to a contact lens based on the protein content and/or lipid content thus detected, and then selecting a contact lens suitable for the wearer and/or a care system therefor from among a plurality of contact lenses and a plurality of care systems (Step S6).
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: September 18, 2007
    Assignee: Menicon Co., Ltd.
    Inventors: Sadanori Ohno, Tetsuji Kawai, Kazuhiko Nakada, Hiroaki Suzuki
  • Publication number: 20060003906
    Abstract: It is intended to provide a method of selecting a contact lens suitable for a wearer and/or a care system therefor, by which the occurrence of problems (for example, worsening in the feel during wearing, lowering in the oxygen permeability of the lens, shortening in the lens life, lowering in the visual acuity, corneal injury, etc.) can be minimized to thereby ensure a high safety for the eye, namely, a method which comprises collecting the lacrimal fluid of a wearer, detecting the protein content and/or the lipid content in the lacrimal fluid thus obtained (Step S5), estimating the dirt adhesion characteristics of the wearer to a contact lens based on the protein content and/or lipid content thus detected, and then selecting a contact lens suitable for the wearer and/or a care system therefor from among a plurality of contact lenses and a plurality of care systems (Step S6).
    Type: Application
    Filed: September 9, 2005
    Publication date: January 5, 2006
    Applicant: Menicon Co., Ltd.
    Inventors: Sadanori Ohno, Tetsuji Kawai, Kazuhiko Nakada, Hiroaki Suzuki
  • Publication number: 20050160009
    Abstract: It is an object to provide a novel system for supporting contact lens users, who has not been provided with an after-selling support sufficiently, which is able to provide an appropriate support to individual contact lens user so that he can use contact lenses with comfortable. In order to attain the object, an image signal of the user's currently used contact lenses (20) acquired by a user client apparatus (18) is transmitted via communication network means (38), to a server apparatus (12) of a supporting entity (10). The server apparatus (12) then obtains lens condition evaluation data, which are stored in memory means (14) and transmitted via the communication network means (38) to the user client apparatus (18) so that the user (16) can be provided with the lens condition evaluation data.
    Type: Application
    Filed: April 10, 2003
    Publication date: July 21, 2005
    Applicant: Menicon Co. Ltd.
    Inventors: Hidenari Tanaka, Kazuhiko Nakada, Hiroaki Suzuki, Sadanori Ohno, Tetsuji Kawai
  • Patent number: 6727336
    Abstract: An ocular lens material comprising a siloxane-containing polymer obtained by polymerizing a monomer mixture containing (A) a siloxane macromonomer having at least two active unsaturated groups and a number average molecular weight of 2,000 to 100,000; and (B) a vinyl ester of lower fatty acid as essential components. An ocular lens material comprising a polymer obtained by saponification of the siloxane-containing polymer. Processes for producing the ocular lens materials. The ocular lens materials are excellent not only in lipid-stain resistance, wettability and oxygen permeability, but also in flexibility, particularly, shape recovery at the same time.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: April 27, 2004
    Assignee: Menicon Co., Ltd.
    Inventors: Eri Ito, Tetsuji Kawai, Sadanori Oono, Kazuhiko Nakada, Misako Nishibayashi
  • Publication number: 20040054106
    Abstract: An ocular lens material comprising a siloxane-containing polymer obtained by polymerizing a monomer mixture containing (A) a siloxane macromonomer having at least two active unsaturated groups and a number average molecular weight of 2,000 to 100,000; and (B) a vinyl ester of lower fatty acid as essential components. An ocular lens material comprising a polymer obtained by saponification of the siloxane-containing polymer. Processes for producing the ocular lens materials. The ocular lens materials are excellent not only in lipid-stain resistance, wettability and oxygen permeability, but also in flexibility, particularly, shape recovery at the same time.
    Type: Application
    Filed: August 21, 2003
    Publication date: March 18, 2004
    Applicant: Menicon Co., Ltd.
    Inventors: Eri Ito, Tetsuji Kawai, Sadanori Oono, Kazuhiko Nakada, Misako Nishibayashi
  • Patent number: 6160069
    Abstract: A liquid for contact lenses, containing at least one of a polymer (A) having a recurring unit (a) represented by the formula (I): ##STR1## wherein n is 0 or 1 and a recurring unit (b) represented by the formula (II): ##STR2## wherein m is 0 or 1, and a salt of the polymer (A). The liquid for contact lenses can extremely decrease variation of base curve of a contact lens during preservation and shipping, and shows excellent antiseptic effect and excellent antibacterial effect.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: December 12, 2000
    Assignee: Menicon, Co., Ltd.
    Inventors: Kazuhiko Nakada, Tetsuji Kawai