Observational Studies of the Solar Cycle at the National Astronomical Observatory of Japan
X-Ray Activity in Coronal Loops and Its Photospheric/Chromospheric Signatures
Optical and SXT Observations of the X9 Flare of Nov. 2, 1992
Flares in Active Region NOAA 7260
Solar-Cycle Variation of Near-Sun Sky Brightness Observed with Coronagraphs
Restoration and Interpretation of Images From the Yohkoh Soft X-Ray Telescope
Brightening Event in Halpha and Soft X-Ray on May 18, 1994
The Achievements of Yohkoh and The Next Solar Mission
Determination of the Point Spread Function of the Yohkoh Soft X-Ray Telescope
Enhanced Coronal Heating and 3D Solar Magnetic Fields in AR 7321
Relation Between Magnetic Helicity Injection and Flare Activities in Active Region NOAA 8100
New Observational Facts About Solar Flares from Ground-Based Observations
Annihilation of Magnetic Helicity: A New Model for Solar Flare Onset
Measurement of Magnetic Helicity Flux Into the Solar Corona
Magnetic Helicity and Flare Activity