Sumitomo Electric Industries, Limited

National University Corporation Tokai National Higher Education and Research System

Cyfuse Biomedical K.k.

Akinori Kimura

Asako Motomura

Yoko Sugiyama

Soichi Endo

Ryuji Kato

Shintaro Mouri

Hiroshi Suganuma

Ryohei Yamamoto

Mayu Shibuta

Yudai Miyazaki

Shizuka Akieda

The fusion splicer includes a first holding unit, a second holding unit, a screen, a first measurement device, a first driving unit, a second driving unit, and a third driving unit. The screen has a light guide portion through which only test light emitted from one of the plurality of cores of the first optical fiber can pass. The screen is disposed between the end face of the first optical fiber and the end face of the second optical fiber. The first measurement device measures the intensity of leakage light leaking from the second optical fiber. The third driving unit adjusts the position of the screen such that the light guide portion is aligned with one of the plurality of cores of the first optical fiber in the axial direction of the first optical fiber.

Fusion splicer and fusion splicing method

A method for quality evaluation includes emitting measurement light having a wavelength of 300 nm or more and 2,000 nm or less to a cell mass and acquiring a plurality of light intensity information corresponding to each of a plurality of measuring positions in the cell mass, generating a feature amount from a variation of the acquired plurality of light intensity information, and evaluating quality of the cell mass using the generated feature amount as an index.

Quality evaluation method

Growing community of inventors

Osaka, Japan

Akinori Kimura