Mr. Takatoshi Murakawa Profile

Takatoshi Murakawa

at Tokyo Metropolitan Univ

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 21 August 2024 Poster + Paper

Lobster eye x-ray optics fabricated with MEMS technologies

Kumi Ishikawa, Yuichiro Ezoe, Masaki Numazawa, Daiki Ishi, Rei Ishikawa, Yudai Yamada, Hiromi Morishita, Yukine Tsuji, Takatoshi Murakawa, Luna Sekiguchi, Daiki Morimoto, Aoi Ishimure, Yuto Ogasawara, Shunei Miyauchi

Proceedings Volume 13093, 1309359 (2024) https://doi.org/10.1117/12.3020780

KEYWORDS: X-ray optics, X-rays, Wafer level optics, Microelectromechanical systems, Semiconducting wafers, X-ray telescopes, Deformation, Optical surfaces, X-ray imaging

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Proceedings Article | 21 August 2024 Poster + Paper

Development of ultra-lightweight x-ray telescopes fabricated with MEMS technologies for GEO-X

Masaki Numazawa, Yuichiro Ezoe, Kumi Ishikawa, Daiki Ishi, Hiromi Morishita, Yukine Tsuji, Luna Sekiguchi, Takatoshi Murakawa, Yudai Yamada, Rei Ishikawa, Daiki Morimoto, Aoi Ishimure, Shunei Miyauchi, Yuto Ogasawara, Hiroshi Nakajima, Yuki Satoh, Ikuyuki Mitsuishi, Yoshiaki Kanamori, Kohei Morishita, Kazuhisa Mitsuda

Proceedings Volume 13093, 130937E (2024) https://doi.org/10.1117/12.3020669

KEYWORDS: X-rays, X-ray telescopes, X-ray optics, Microelectromechanical systems, X-ray imaging, Telescopes, Spatial resolution, Semiconducting wafers, Wafer level optics, Magnetosphere

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SPIE Journal Paper | 12 September 2023

GEOspace X-ray imager (GEO-X)

Yuichiro Ezoe, Ryu Funase, Harunori Nagata, Yoshizumi Miyoshi, Hiroshi Nakajima, Ikuyuki Mitsuishi, Kumi Ishikawa, Masaki Numazawa, Yosuke Kawabata, Shintaro Nakajima, Ryota Fuse, Ralf Boden, Landon Kamps, Tomokage Yoneyama, Kouichi Hagino, Yosuke Matsumoto, Keisuke Hosokawa, Satoshi Kasahara, Junko Hiraga, Kazuhisa Mitsuda, Masaki Fujimoto, Munetaka Ueno, Atsushi Yamazaki, Hiroshi Hasegawa, Takefumi Mitani, Yasuhiro Kawakatsu, Takahiro Iwata, Hiroyuki Koizumi, Hironori Sahara, Yoshiaki Kanamori, Kohei Morishita, Daiki Ishi, Aoto Fukushima, Ayata Inagaki, Yoko Ueda, Hiromi Morishita, Yukine Tsuji, Runa Sekiguchi, Takatoshi Murakawa, Kazuma Yamaguchi, Rei Ishikawa, Daiki Morimoto, Yudai Yamada, Shota Hirai, Yuki Nobuhara, Yownin Leung, Yamato Itoigawa, Ryo Onodera, Satoru Kotaki, Shotaro Nakamura, Ayumi Kiuchi, Takuya Matsumoto, Midori Hirota, Kazuto Kashiwakura

JATIS, Vol. 9, Issue 03, 034006, (September 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.3.034006

KEYWORDS: Satellites, X-rays, X-ray imaging, Magnetosphere, Solar processes, X-ray astronomy, Spatial resolution, Satellite imaging, X-ray telescopes, Simulations

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Proceedings Article | 8 June 2023 Presentation

Assembly of an ultralight weight X-ray telescope using MEMS technologies (Conference Presentation)

Hiromi Morishita, Yuichiro Ezoe, Kumi Ishikawa, Masaki Numazawa, Daiki Ishi, Aoto Fukushima, Ayata Inagaki, Yoko Ueda, Luna Sekiguchi, Yukine Tsuji, Takatoshi Murakawa, Kazuma Yamaguchi, Rei Ishikawa, Daiki Morimoto, Yudai Yamada, Kazuhisa Mitsuda, Kohei Morishita, Kazuo Nakajima, Yoshiaki Kanamori

Proceedings Volume PC12576, PC1257602 (2023) https://doi.org/10.1117/12.2665160

KEYWORDS: X-ray telescopes, Microelectromechanical systems, X-rays, Semiconducting wafers, Optical fabrication, X-ray optics, Wafer-level optics, Silicon, Telescopes, Satellites

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Proceedings Article | 31 August 2022 Poster + Paper

Collimator of the ultra-lightweight x-ray telescope for the GEO-X mission

Kumi Ishikawa, Takatoshi Murakawa, Daiki Ishi, Masaki Numazawa, Aoto Fukushima, Sae Sakuda, Tomoki Uchino, Ayata Inagaki, Hiromi Morishita, Yoko Ueda, Luna Sekiguchi, Yukine Tsuji, Yuichiro Ezoe

Proceedings Volume 12181, 121816O (2022) https://doi.org/10.1117/12.2631464

KEYWORDS: X-rays, Collimators, Stray light, X-ray optics, X-ray imaging, Magnetosphere, Microelectromechanical systems

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Proceedings Article | 31 August 2022 Poster + Paper

Ultra-lightweight x-ray telescope fabricated with multiple MEMS technologies for GEO-X mission

Masaki Numazawa, Yuichiro Ezoe, Kumi Ishikawa, Daiki Ishi, Aoto Fukushima, Sae Sakuda, Tomoki Uchino, Ayata Inagaki, Hiromi Morishita, Yoko Ueda, Takatoshi Murakawa, Luna Sekiguchi, Yukine Tsuji, Ikuyuki Mitsuishi, Hiroshi Nakajima, Yoshiaki Kanamori, Kohei Morishita, Kazuhisa Mitsuda

Proceedings Volume 12181, 121815G (2022) https://doi.org/10.1117/12.2630501

KEYWORDS: X-rays, X-ray optics, Reflectivity, Microelectromechanical systems, Annealing, X-ray telescopes, Telescopes, Mirrors, Semiconducting wafers, X-ray imaging

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Proceedings Article | 31 August 2022 Presentation + Paper

Development of Bragg reflection-type x-ray polarimeter based on a bent silicon crystal using hot plastic deformation

Y. Ueda, T. Uchino, D. Ishi, Y. Ezoe, K. Ishikawa, M. Numazawa, A. Fukushima, S. Sakuda, A. Inagaki, H. Morishita, L. Sekiguchi, T. Murakawa, Y. Tsuji, K. Mitsuda, K. Morishita, K. Nakajima

Proceedings Volume 12181, 121812O (2022) https://doi.org/10.1117/12.2629635

KEYWORDS: X-rays, Silicon, Semiconducting wafers, Modulation, Polarization, Reflection, X-ray astronomy

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Showing 5 of 7 publications

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