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- 秋山 尚之（アキヤマ タカユキ）
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論文
| 1. | Disseminated intravascular coagulation is associated with poor prognosis in patients with COVID-19.
（査読有り）
Satoshi Gando, Takayuki Akiyama Scientific reports 14巻1号12443頁 2024年5月 
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| 2. | Steroid initiation timing and outcome of coronavirus disease 2019 patients: A multicenter, retrospective, observational study.
（査読有り）
Ryu Sugimoto, Tsuneaki Kenzaka, Ayako Mikami, Nobuaki Matsunaga, Takayuki Akiyama, Norio Ohmagari, Hogara Nishisaki International journal of immunopathology and pharmacology 37巻3946320231216314頁 2023年11月
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| 3. | Clinical efficacy of remdesivir for COVID-19 in children: A propensity-score-matched analysis
（査読有り）
Kensuke Shoji, Yusuke Asai, Takayuki Akiyama, Shinya Tsuzuki, Nobuaki Matsunaga, Setsuko Suzuki, Noriko Iwamoto, Takanori Funaki, Isao Miyairi, Norio Ohmagari Journal of Infection and Chemotherapy 29巻9号 2023年9月
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| 4. | Temporal trends in microbial detection during the COVID-19 pandemic: Analysis of the Japan surveillance for Infection Prevention and Healthcare Epidemiology (J-SIPHE) database
（査読有り）
Akira Endo, Yusuke Asai, Taichi Tajima, Mio Endo, Takayuki Akiyama, Nobuaki Matsunaga, Haruhiko Ishioka, Shinya Tsuzuki, Norio Ohmagari Journal of Infection and Chemotherapy 29巻1号 2023年1月
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| 5. | Comparison of clinical characteristics of COVID-19 in pregnant women between the Delta and Omicron variants of concern predominant periods
（査読有り）
Kensuke Shoji, Shinya Tsuzuki, Takayuki Akiyama, Nobuaki Matsunaga, Yusuke Asai, Setsuko Suzuki, Noriko Iwamoto, Takanori Funaki, Masaki Yamada, Nobuaki Ozawa, Koushi Yamaguchi, Isao Miyairi, Norio Ohmagari Journal of Infection and Chemotherapy 29巻1号 2023年1月
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| 6. | Predictive model of risk factors of High Flow Nasal Cannula using machine learning in COVID-19
（査読有り）
Nobuaki Matsunaga, Keisuke Kamata, Yusuke Asai, Shinya Tsuzuki, Yasuaki Sakamoto, Shinpei Ijichi, Takayuki Akiyama, Jiefu Yu, Gen Yamada, Mari Terada, Setsuko Suzuki, Kumiko Suzuki, Sho Saito, Kayoko Hayakawa, Norio Ohmagari Infectious Disease Modelling 7巻3号 2022年9月
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| 7. | Impact of dementia, living in a long-term care facility, and physical activity status on COVID-19 severity in older adults
（査読有り）
Shinya Tsuzuki, Takayuki Akiyama, Nobuaki Matsunaga, Norio Ohmagari 2022年7月
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| 8. | Comparison of the clinical characteristics and outcomes of COVID-19 in children before and after the emergence of Delta variant of concern in Japan
（査読有り）
Kensuke Shoji, Takayuki Akiyama, Shinya Tsuzuki, Nobuaki Matsunaga, Yusuke Asai, Setsuko Suzuki, Noriko Iwamoto, Takanori Funaki, Norio Ohmagari Journal of Infection and Chemotherapy 28巻4号591-594頁 2022年4月
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| 9. | Impact of regional heterogeneity on the severity of COVID-19
（査読有り）
Shinya Tsuzuki, Yusuke Asai, Nobuaki Matsunaga, Haruhiko Ishioka, Takayuki Akiyama, Norio Ohmagari Journal of Infection and Chemotherapy 28巻4号554-557頁 2022年4月
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| 10. | Clinical characteristics of COVID-19 in hospitalized children during the Omicron variant predominant period
（査読有り）
Shoji, K., Akiyama, T., Tsuzuki, S., Matsunaga, N., Asai, Y., Suzuki, S., Iwamoto, N., Funaki, T., Ohmagari, N. Journal of Infection and Chemotherapy 28巻11号 2022年
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| 11. | Clinical Characteristics and Outcomes of Coronavirus Disease 2019 (COVID-19) in Pregnant Women: A Propensity Score-Matched Analysis of Data from the COVID-19 Registry Japan
（査読有り）
Shoji, K., Tsuzuki, S., Akiyama, T., Matsunaga, N., Asai, Y., Suzuki, S., Iwamoto, N., Funaki, T., Yamada, M., Ozawa, N., Yamaguchi, K., Miyairi, I., Ohmagari, N. Clinical Infectious Diseases 75巻1号 2022年
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| 12. | Association between physical activity status and severity of COVID-19 in older adults
（査読有り）
Tsuzuki, S., Akiyama, T., Matsunaga, N., Ohmagari, N. Epidemiology and Infection 150巻 2022年
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| 13. | Clinical Characteristics of Hospitalized COVID-19 in Children: Report from the COVID-19 Registry in Japan
（査読有り）
Shoji, K., Akiyama, T., Tsuzuki, S., Matsunaga, N., Asai, Y., Suzuki, S., Iwamoto, N., Funaki, T., Ohmagari, N. Journal of the Pediatric Infectious Diseases Society 10巻12号 2021年
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| 14. | Improved penicillin susceptibility of Streptococcus pneumoniae and increased penicillin consumption in Japan, 2013-18
（査読有り）
Tsuzuki, S., Akiyama, T., Matsunaga, N., Yahara, K., Shibayama, K., Sugai, M., Ohmagari, N. PLoS ONE 15巻10 October号 2020年
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| 15. | High-Speed Optical Camera Communication Using an Optimally Modulated Signal
（査読有り）
Masanori Sugimoto, Hayato Kumaki, Takayuki Akiyama, Hiromichi Hashizume ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings 2018-April巻3739-3743頁 2018年9月
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| 16. | Time-of-arrival-based smartphone localization using visible light communication
（査読有り）
Takayuki Akiyama, Masanori Sugimoto, Hiromichi Hashizume 2017 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2017 2017-January巻1-7頁 2017年11月
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| 17. | Poster Abstract: OFDM Visible Light Communication using Off-the-shelf Video Camera
Shota Shimada, Hiromichi Hashizume, Takayuki Akiyama, Masanori Sugimoto SenSys 2017 - Proceedings of the 15th ACM Conference on Embedded Networked Sensor Systems 2017-January巻 2017年11月
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| 18. | Poster: Multicamera synchronization for smartphones using optimally modulated illuminations
Koki Kudo, Masanori Sugimoto, Takayuki Akiyama, Hiromichi Hashizume MobiSys 2017 - Proceedings of the 15th Annual International Conference on Mobile Systems, Applications, and Services 148-頁 2017年6月
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| 19. | Optimally Modulated Illumination for Rapid and Accurate Time Synchronization
（査読有り）
Sugimoto, M., Kumaki, H., Akiyama, T., Hashizume, H. IEEE Transactions on Signal Processing 65巻2号 2017年
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| 20. | Time-of-arrival-based indoor smartphone localization using light-synchronized acoustic waves
（査読有り）
Akiyama, T., Sugimoto, M., Hashizume, H. IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E100A巻9号 2017年
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| 21. | A spot-controllable data transfer technique using COTS speakers
Masanari Nakamura, Takayuki Akiyama, Hiromichi Hashizume, Masanori Sugimoto 2016 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2016 2016年11月
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| 22. | SyncSync: Time-of-arrival based localization method using light-synchronized acoustic waves for smartphones
Takayuki Akiyama, Masanori Sugimoto, Hiromichi Hashizume 2015 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2015 2015年12月
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| 23. | A rapid and accurate time-synchronization technique for acoustic localization using modulated illumination
Hayato Kumaki, Masanori Sugimoto, Hiromichi Hashizume, Takayuki Akiyama, Taishi Saito 2015 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2015 2015年12月
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| 24. | Light-synchronized acoustic ToA measurement system for mobile smart nodes
Takayuki Akiyama, Masanori Sugimoto, Hiromichi Hashizume IPIN 2014 - 2014 International Conference on Indoor Positioning and Indoor Navigation 749-752頁 2014年
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| 25. | 3D FDM - PAM: Rapid and precise indoor 3D localization using acoustic signal for smartphone
Masanari Nakamura, Takayuki Akiyama, Masanori Sugimoto, Hiromichi Hashizum UbiComp 2014 - Adjunct Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing 123-126頁 2014年
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| 26. | Smart phone localization method using dual-carrier acoustic waves
Takayuki Akiyama, Masanari Nakamura, Masanori Sugimoto, Hiromich Hashizume 2013 International Conference on Indoor Positioning and Indoor Navigation, IPIN 2013 2013年
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講演・口頭発表等
| No. | 会議名 | 開催・発表年月日 | 開催地 |
|---|---|---|---|
| 1. | Prevalence and significance of disseminated intravascular coagulation in COVID-19（43RD INTERNATIONAL SYMPOSIUM ON INTENSIVE CARE & EMERGENCY MEDICINE） |
開催年月日：
2024年3月19日
～ 2024年3月22日 発表年月日： 2024年03月 |
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| 2. | High-Speed Optical Camera Communication Using an Optimally Modulated Signal.（2018 IEEE International Conference on Acoustics, Speech and Signal Processing(ICASSP)）
|
開催年月日：
2018年 発表年月日： 2018年 |
|
| 3. | Time-of-arrival-based smartphone localization using visible light communication.（2017 International Conference on Indoor Positioning and Indoor Navigation(IPIN)）
|
開催年月日：
2017年 発表年月日： 2017年 |
|
| 4. | Poster: Multicamera Synchronization for Smartphones using Optimally Modulated Illuminations.（Proceedings of the 15th Annual International Conference on Mobile Systems, Applications, and Services(MobiSys)）
|
開催年月日：
2017年 発表年月日： 2017年 |
|
| 5. | OFDM Visible Light Communication using Off-the-shelf Video Camera.（Proceedings of the 15th ACM Conference on Embedded Network Sensor Systems(SenSys)）
|
開催年月日：
2017年 発表年月日： 2017年 |
|
| 6. | A spot-controllable data transfer technique using COTS speakers.（International Conference on Indoor Positioning and Indoor Navigation(IPIN)）
|
開催年月日：
2016年 発表年月日： 2016年 |
|
| 7. | SyncSync: Time-of-arrival based localization method using light-synchronized acoustic waves for smartphones.（2015 International Conference on Indoor Positioning and Indoor Navigation(IPIN)）
|
開催年月日：
2015年 発表年月日： 2015年 |
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| 8. | A rapid and accurate time-synchronization technique for acoustic localization using modulated illumination.（2015 International Conference on Indoor Positioning and Indoor Navigation(IPIN)）
|
開催年月日：
2015年 発表年月日： 2015年 |
産業財産権
| No. | 産業財産権 | 特許番号／登録番号 |
|---|---|---|
| 1. | 情報伝送システム | 特許第7213494号 |
| 2. | 情報送信装置、情報受信装置、情報伝送システム及びプログラム、測位システム、照明器具並びに照明システム | 特許第6847411号 |
| 3. | 同期タイミング検出システム及び検出方法、測距システム及び測位システム、並びに受信装置及びそのプログラム |
