1
Keiko Yugawa, Toshihiko Yoshioka, Shiro Nankai: Biosensor containing glucose dehydrogenase. Matsushita Electric Industrial, Akin Gump Strauss Hauer & Feld L, December 2, 2003: US06656702 (202 worldwide citation)

A biosensor that enables rapid and simple quantitation of a substrate with high accuracy and demonstrates an excellent preservation characteristic by best retaining enzyme activity is disclosed. The biosensor comprises an electrically insulating base plate, an electrode system including at least a w ...


2
Motokazu Watanabe, Keiko Yugawa, Toshihiko Yoshioka, Shiro Nankai, Junko Nakayama, Shoji Miyazaki, Hideyuki Baba: Glucose sensor. Matsushita Electric Industrial, McDermott Will & Emery, February 28, 2006: US07005048 (180 worldwide citation)

The present invention provides a high-performance glucose sensor having excellent storage stability and an improved response characteristic. This sensor comprises: an electrically insulating base plate; an electrode system including at least a working electrode and a counter electrode formed on the ...


3
Motokazu Watanabe, Keiko Yugawa, Shiro Nankai: Cholesterol sensor and method of determining cholesterol. Matsushita Electric Industrial, McDermott Will & Emery, January 29, 2002: US06342364 (47 worldwide citation)

The present invention provides a sensor that electrochemically determines cholesterol in low density lipoprotein by only one feed of a sample. The sensor has: an electrode system that is mounted on an electrically insulating base plate and includes at least a working electrode and a counter electrod ...


4
Keiko Yugawa, Toshihiko Yoshioka, Shiro Nankai, Junko Iwata, Shoji Miyazaki, Hideyuki Baba, Seiji Takeshima: Glucose sensor. Matsushita Electric Industrial, Toyobo, McDermott Will & Emery, August 10, 2004: US06773564 (28 worldwide citation)

The present invention provides a high performance glucose sensor which can demonstrate high stability against preservation and produces only a low blank value. The glucose sensor comprises an electrically insulating base plate, an electrode system formed on the base plate, and a reaction layer which ...


5
Tatsurou Kawamura, Keiko Yugawa, Akihito Kamei: Turbidimetric immunoassay and an apparatus therefor. Matsushita Electric Industrial, McDermott Will & Emery, June 5, 2007: US07226777 (10 worldwide citation)

According to the present invention, the expansion of measurable concentration range for an antigen in a sample solution can be achieved, without a step of dilution or the like. The concentration of an antigen contained in a sample solution is determined from the maximum value and/or minimum value of ...


6
Nobuyuki Sigetoh, Jinsei Miyazaki, Hiroshi Nakayama, Keiko Yugawa, Tadayasu Mitsumata: Labelling color for detecting methamphetamine. Matsushita Electric Industrial, Fish & Richardson, January 3, 1995: US05378634 (9 worldwide citation)

A labelling color which includes a pentamethine of the following formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each are a C.sub.1-6 alkyl group, and X is an anion.


7
Keiko Yugawa, Nobuyuki Shigetoh, Akihito Kamei, Tatsurou Kawamura: Immunoassay method/equipment, biological component measurable toilet, anti-albumin monoclonal antibody, cell strain producing the same, and albumin detection kit. Matsushita Electric Industrial, McDermott Will & Emery, July 10, 2007: US07241578 (6 worldwide citation)

The immunoassay method of this invention measures the content of a subject substance in a sample. The method includes the steps of: (a) preparing a mixed solution by mixing the sample and an antibody solution including a first monoclonal antibody and a second monoclonal antibody capable of specifica ...


8
Akihito Kamei, Tatsurou Kawamura, Keiko Yugawa: Immunoreaction measurement method. Matsushita Electric Industrial, McDermott Will & Emery, April 10, 2007: US07202041 (2 worldwide citation)

The present invention relates to an immunoreaction measuring method for measuring an antigen or antibody contained as a subject substance in a sample, wherein the sample was mixed with at least one compound selected from the group consisting of dicarboxylic acids having a hydroxyl group, dicarboxyli ...


9

10
Keiko Yugawa, Nobuyuki Sigetoh, Jinsei Miyazaki, Tadayasu Mitsumata: Cocaine derivative, protein conjugate thereof, monoclonal antibody producing cell line, method for preparing the cell line and monoclonal antibody. Matsushita Electric Industrial, Morrison & Foerster, January 16, 2001: US06174723 (1 worldwide citation)

A method for preparing a cocaine-protein conjugate easily by using a cocaine derivative having a methoxy carbonyl group and benzoyl group. This conjugate is useful for the detection of cocaine or cocaine derivatives. A monoclonal antibody, a monoclonal antibody producing cell line, and a method for ...