The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 1998
Filed:
Jul. 30, 1996
Yutaka Kondo, Suwa, JP;
Katsuyuki Honda, Suwa, JP;
Hiroshi Odagiri, Chiba, JP;
Takeshi Ono, Chiba, JP;
Seiko Epson Corporation, Tokyo, JP;
Seiko Instruments, Inc., Chiba, JP;
Abstract
To achieve a pulse wave measuring apparatus whereby the sensor unit can be easily and consistently worn against the skin surface, a wristwatch type pulse wave measuring apparatus is comprised as follows. Specifically, light transmittance plate 34 is disposed on the outside surface side of LED 31 and phototransistor 32 in sensor unit 30. Outside surface 341 of light transmittance plate 34, which is pressed against the finger, projects above the reference surface, which is outside surface 361 of sensor frame 36 surrounding light transmittance plate 34. Two body ground terminals 38 contacting the finger surface when light transmittance plate 34 is pressed tight to the finger are disposed around light transmittance plate 34; the body ground terminals 38 also project above the reference surface. However, the position of outside surfaces 381 of body ground terminals 38 is lower than the outside surface 341 of light transmittance plate 34. A supporter-like sensor unit holding band is used to hold sensor unit 30 on the finger. A thick material such as that used in diving wet suits is used for the sensor unit holding band, and comprises a middle layer of foam rubber.