About the Authors

Miyuki Kono

miyuki.kono@nifty.ne.jp (MK); mimorit@kuhp.kyoto-u.ac.jp (TM)

Affiliation Central Research Laboratory, Hitachi Ltd., Kokubunji-shi, Tokyo, Japan

Naoto Miura

Affiliation Central Research Laboratory, Hitachi Ltd., Kokubunji-shi, Tokyo, Japan

Takao Fujii

Affiliation Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan

Koichiro Ohmura

Affiliation Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan

Hajime Yoshifuji

Affiliation Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan

Naoichiro Yukawa

Affiliation Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan

Yoshitaka Imura

Affiliation Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan

Ran Nakashima

Affiliation Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan

Takaharu Ikeda

Affiliation Department of Dermatology, Wakayama Medical University, Wakayama, Japan

Shin-ichiro Umemura

Affiliation Graduate School of Biomedical Engineering, Tohoku University, Sendai-shi, Miyagi, Japan

Takafumi Miyatake

Affiliation Central Research Laboratory, Hitachi Ltd., Kokubunji-shi, Tokyo, Japan

Tsuneyo Mimori

miyuki.kono@nifty.ne.jp (MK); mimorit@kuhp.kyoto-u.ac.jp (TM)

Affiliation Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan

Competing Interests

Miyuki Kono, Naoto Miura, and Takafumi Miyatake are employees of Hitachi Ltd., and this study was performed as a collaborative project between Hitachi Ltd. and the Department of Rheumatology and Clinical Immunology, Kyoto University. Otherwise, T. Fujii, K. Ohmura, H. Yoshifuji, N. Yukawa, Y. Imura, R. Nakashima, T. Ikeda, S. Umemura and T. Mimori have declared that no competing interests exist. The finger-vein authentication system is a commercial product of Hitachi Ltd., but patents related to this system were already applied and no patent application exists based on this study. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MK NM SU T. Miyatake T. Mimori. Performed the experiments: MK TF KO HY NY YI RN TI. Analyzed the data: MK T. Mimori. Contributed reagents/materials/analysis tools: NM. Wrote the paper: MK T. Mimori.