1
Shuichiro Yamaguchi, Norihiko Ushizawa, Takeshi Shimomura, Noboru Oyama: Ion sensor. Terumo Kabushiki Kaisha, Cushman Darby & Cushman, July 28, 1992: US05133856 (254 worldwide citation)

An ion sensor of the type wherein a specific type of ion in an aqueous solution is measured by potential response. The sensor includes a conductor base, and a reversible redox polymer film formed directly on a surface of said conductor base. An ion carrier film is formed directly on a surface of sai ...


2
Tomohiko Hattori, Norihiko Ushizawa: Blood glucose measurement apparatus. Terumo Kabushiki Kaisha, Burns Doane Swecker & Mathis, October 13, 1998: US05820557 (50 worldwide citation)

A handy blood glucose measurement apparatus irradiates the retina of the eye of the subject with light emitted from light-emitting elements having two different wavelengths, with the light of one wavelength serving as reference light and the light of the other wavelength serving as measurement light ...


3
Norihiko Ushizawa, Takeshi Shimomura: Oxygen sensor. Terumo Kabushiki Kaisha, Burns Doane Swecker & Mathis, August 29, 1989: US04861454 (31 worldwide citation)

An oxygen sensor includes an electrically conductive substrate directly coated with an electrolytic oxidative polmeric membrane, which contains a porphyrin compound and a metal complex thereof. Also provided is an oxygen sensor capable of being subjected to a temperature calibration and including an ...


4
Norihiko Ushizawa, Takeshi Shimomura: Oxygen sensor. Terumo Kabushiki Kaisha, Burns Doane Swecker & Mathis, September 18, 1990: US04957615 (31 worldwide citation)

An oxygen sensor includes an electrically conductive substrate directly coated with an electrolytic oxidative polymeric membrane, which contains a porphyrin compound and a metal complex thereof. Also provided is an oxygen sensor capable of being subjected to a temperature calibration and including a ...


5
Shuichiro Yamaguchi, Norihiko Ushizawa, Norio Daikuhara, Takeshi Shimomura, Naoto Uchida: Biological information measurement apparatus. Terumo Kabushiki Kaisha, Burns Doane Swecker & Mathis, June 30, 1992: US05126937 (29 worldwide citation)

A biological information measurement apparatus is adapted to measure biological information in an extracorporeal circuration or in a living body by various measurement circuits comprising circuit elements which are not affected by electrical disturbances, and to transmit the results of measurement i ...


6
Noboru Oyama, Hiroaki Matsuda, Eishun Tsuchida, Yukio Ohnuki, Takeshi Shimomura, Norihiko Ushizawa: Selectively permeable film and ion sensor. Terumo Corporation, Frishauf Holtz Goodman & Woodward, January 7, 1986: US04563263 (29 worldwide citation)

A selectively permeable film directly applied to coat the surface of an electroconductive element, said electively permeable film comprising a polymer which is derived from at least one aromatic compound selected from the group of nitrogen-containing aromatic compounds or from the group of hydroxy a ...


7
Norihiko Ushizawa, Tsutomu Murakami, Takeshi Shimomura, Noboru Oyama: pH sensor. Terumo Kabushiki Kaisha, Frishauf Holtz Goodman & Woodward, April 15, 1986: US04582589 (22 worldwide citation)

A pH sensor includes a substrate formed of an electrically conductive carbon material. A hydrogen ion-sensitive layer is formed on the substrate surface. The layer is formed of an electrooxidation polymer of a nitrogen-containing aromatic compound selected from the group consisting of 1-aminopyrene ...


8
Takeshi Shimomura, Shuichiro Yamaguchi, Norihiko Ushizawa, Noboru Oyama: Reference electrode. Terumo Kabushiki Kaisha, Frishauf Holtz Goodman & Woodward, March 26, 1985: US04507194 (17 worldwide citation)

A reference electrode is prepared by coating the surface of a conductive substrate with a silver complex polymer compound, which is either a compound prepared by the complex formation between a polymer compound containing a coordination nitrogen atom and a silver ion or an aforementioned complex com ...


9
Shuichiro Yamaguchi, Norihiko Ushizawa, Takeshi Shimomura: Ion sensor. Terumo Kabushiki Kaisha, Burns Doane Swecker & Mathis, January 17, 1989: US04798664 (14 worldwide citation)

Disclosed is a solid-type ion sensor which does not have an internal liquid chamber. The ion sensor has a laminated structure basically includes an electrically conductive substrate, a redox layer having a redox function covering the surface of the electrically conductive substrate, and an ion-selec ...


10
Shuichiro Yamaguchi, Norihiko Ushizawa, Takeshi Shimomura: Reference electrode. Terumo Kabushiki Kaisha, Burns Doane Swecker & Mathis, December 10, 1991: US05071537 (13 worldwide citation)

A miniature, solid-state long-life reference electrode in which the amount of outflow of an internal electrolyte containing a halogen ion is reduced includes a conductor on the periphery of which is formed a sintered body consisting of a silver halide and silver oxide, a water-containing gel envelop ...



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