Author

Hiroyuki Iwashita

Observed names: H. Iwashita, Iwashita, Hiroyuki

Institution: National Astronomical Observatory of Japan

Observed institutions: National Astronomical Observatory of Japan, Nobeyama Radio Observatory, The University of Tokyo

OpenAlex ID: A5044860373

Development of the new multi-beam 100 GHz band SIS receiver FOREST for the Nobeyama 45-m Telescope

2016 · Tetsuhiro Minamidani, Atsushi Nishimura, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 104

New achievements of ASTE: the Atacama Submillimeter Telescope Experiment

2008 · Hajime Ezawa, Kotaro Kohno, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 59

A 6 × 320-MHz 1024-channel FFT cross-spectrum analyzer for radio astronomy

1987 · Y. Chikada, M. Ishiguro, et al. · Proceedings of the IEEE · 53

CS around Orion-KL - A large rotating disk

1984 · T. Hasegawa, N. Kaifu, et al. · The Astrophysical Journal · 48

A New 100-GHz Band Two-Beam Sideband-Separating SIS Receiver for Z-Machine on the NRO 45-m Radio Telescope

2013 · T. Nakajima, K. Kimura, et al. · Publications of the Astronomical Society of the Pacific · 43

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Development of ALMA Band 4 (125–163 GHz) receiver

2014 · Shin’ichiro Asayama, Toshikazu Takahashi, et al. · Publications of the Astronomical Society of Japan · 35

Design of the focal plane array receiver for the NRO 45-m telescope

2000 · Chieko Yamaguchi, Kazuyoshi Sunada, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 29

Aperture synthesis observations of the molecular environment of the SGR A complex. I - The M-0.13-0.08 molecular cloud

1989 · Sachiko K. Okumura, Masato Ishiguro, et al. · The Astrophysical Journal · 29

Molecular gas bar and expanding molecular ring in the nucleus of the spiral galaxy Maffei 2

1989 · M. Ishiguro, R. Kawabe, et al. · The Astrophysical Journal · 27

W -band waveguide photomixer using a uni-traveling-carrier photodiode with 2-mw output

2003 · A. Ueda, T. Noguchi, et al. · IEEE Transactions on Microwave Theory and Techniques · 26

Design and performance of the ALMA-J prototype antenna

2004 · Nobuharu Ukita, Masao Saito, et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 22

A 100 GHz SIS mixer of Nb/Al-AlOx/Nb junctions

1987 · J. Inatani, T. Kasuga, et al. · IEEE Transactions on Magnetics · 19

Antenna Performance of a Directly Dug Corrugated Feedhorn for the 150-GHz Band

2008 · Kimihiro Kimura, Hiroyuki Iwashita, et al. · International Journal of Infrared and Millimeter Waves · 17

A Digital FFT Spectro-Correlator for Radio Astronomy

1984 · Yoshihiro Chikada, M. Ishiguro, et al. · 15

Ultra-Low Noise Photonic Local Oscillator at 100 GHz

2003 · Akitoshi Ueda, Takashi Noguchi, et al. · Japanese Journal of Applied Physics · 13

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Design and development of ALMA band 4 cartridge receiver

2008 · Shin’ichiro Asayama, Susumu Kawashima, et al. · 12

Series-connected array of superconductor–insulator–superconductor junctions in the 100 GHz-band heterodyne mixer for FOREST on the Nobeyama 45 m telescope

2018 · Taku Nakajima, Hirofumi Inoue, et al. · Publications of the Astronomical Society of Japan · 11

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A 350 GHz SIS Receiver on the Nobeyama 10 m Submillimeter Telescope

2001 · Yutaro Sekimoto, Takeshi Sakai, et al. · Publications of the Astronomical Society of Japan · 11

Millimeter Wave Generation Using a Uni-traveling-Carrier Photodiode

2001 · Takashi Noguchi, Akitoshi Ueda, et al. · Softwaretechnik-Trends · 9

The Nobeyama millimeter-wave interferometer

1985 · M. Ishiguro, Katsuhiro Morita, et al. · 8

New observing system of the 45-m telescope at Nobeyama Radio Observatory

2011 · Nario Kuno, Shuro Takano, et al. · URSI General Assembly and Scientific Symposium · 7

A compact 150 GHz SIS receiver cooled by 4 K GM refrigerator

1993 · Masahiko Takahashi, H. Hatakeyama, et al. · STIN · 7

A very fast FFT spectrum analyzer for radio astronomy

2005 · Y. Chikada, M. Ishiguro, et al. · IEEE International Conference on Acoustics Speech and Signal Processing · 4

Exploration of Southern Sky with Atacama Submillimeter Telescope Experiment (ASTE)

1997 · K. Kohno, S. Yamamoto, et al. · Springer proceedings in physics · 4

A 40 GHz band SIS receiver using Nb/Al?AlOx/Nb array junctions

1987 · M. Tsuboi, J. Inatani, et al. · International Journal of Infrared and Millimeter Waves · 4

Works count: 50

Citation count: 640

H-index: 14

I10-index: 18