About the Authors
- Maiko Saito
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* E-mail: maiko.saito@pc.hoya.co.jp
Affiliation R&D Department, PENTAX New Ceramics Division, HOYA Corporation, Tokyo, Japan
- Yae Kurosawa
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Affiliation R&D Department, PENTAX New Ceramics Division, HOYA Corporation, Tokyo, Japan
- Tsuneo Okuyama
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Affiliation Protein Technos Institute, Kanagawa, Japan
Competing Interests
Maiko Saito and Yae Kurosawa are employees by HOYA Corporation. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.
Author Contributions
Conceived and designed the experiments: MS YK TO. Performed the experiments: MS. Analyzed the data: MS. Contributed reagents/materials/analysis tools: MS. Wrote the paper: MS.