Kabushiki Kaisha Toshiba

Toshiba Battery Co., Ltd.

Junichi Takabayashi

Hiroyuki Adachi

Makoto Ochiai

Norio Takami

Shuji Yamada

Satoshi Yamamoto

Takahiro Miura

Takahisa Ohsaki

Satoshi Nagai

Yasuhiro Yuguchi

Yoshinori Satoh

Jun Semboshi

Tetsuro Aikawa

Setsu Yamamoto

Kazumi Watanabe

Masaru Otsuka

Tatsuya Oodake

Tadahiro Mitsuhashi

Kuniaki Inada

Norihito Kurisu

An ultrasonic flaw detector including an ultrasonic probe for emitting an ultrasonic wave on an object to be inspected and receiving a reflected ultrasonic wave from the object, a drive element control unit for controlling a plurality of ultrasonic elements to emit an ultrasonic wave from the ultrasonic probe and to control a reflected ultrasonic wave from the object, and a calculation unit for obtaining, by using a refraction angle of the ultrasonic wave at a time of the ultrasonic wave entering the object, an incident position of the ultrasonic wave on a surface of the object, and a surface shape of a surface of the object at the incident position, the incident angle of the ultrasonic wave entering the incident position, and obtaining a plurality of ultrasonic elements to be driven, based on the incident position and the incident angle.

Ultrasonic flaw detector and ultrasonic flaw detecting method

The present invention includes a camera which takes an image of a camera or an inspection target; a device which estimates the movement of the inspection target; a device which generates a high resolution image having a higher resolution than the pixel resolution of a video image taken by the camera from the video image taken by the camera; a device which evaluates the quality of the high resolution image generated by the generation device; and a device which presents an inspector who visually inspects the inspection target with the high resolution image together with the quality evaluation result of the high resolution image. The present invention can improve the reliability of inspection by use of the high resolution image as well as can reduce the inspection time, and further can guarantee the reliability of the inspection using a high resolution image.

Visual inspection apparatus and visual inspection method

A nonaqueous electrolyte secondary battery comprising a positive electrode housed in a case a negative electrode arranged in the case so that a separator is sandwiched between the positive and negative electrodes consisting of lithium or lithium-containing material, and a nonaqueous electrolyte contained in the case and prepared by dissolving an electrolytic salt consisting of lithium phosphate hexafluoride (LiPF.sub.6) or lithium borofluoride (LiBF.sub.4) in a solvent mixture consisting of ethylene carbonate, 2-methyltetrahydrofuran, and at least one ester-based nonaqueous solvent selected from the group consisting of butylene carbonate, dimethyl carbonate, .gamma.-butyrolactone, and sulfolane.

Nonaqueous electrolyte secondary battery

Growing community of inventors

Yokohama, Japan

Junichi Takabayashi