Miniature Broad-Band CPW 3-dB Branch-Line Couplers in Slow-Wave Structure. - Takao Fujii; Isao Ohta; Tadashi Kawai; Yoshihiro Kokubo (IEICE Trans. Electron., 2007)

Economic Setup for a Dual-Band Metallic Waveguide with Dual In-Line Dielectric Rods. - Yoshihiro Kokubo; Sotaro Yoshida; Tadashi Kawai (IEICE Trans. Electron., 2007)

Parallel Coupled Microstrip Couplers Compensated with Periodic Floating-Conductors on Coupled Edges. - Takao Fujii; Isao Ohta; Tadashi Kawai; Yoshihiro Kokubo (IEICE Trans. Electron., 2008)

Dual-Band Wilkinson Power Dividers Using a Series RLC Circuit. - Tadashi Kawai; Yasuaki Nakashima; Yoshihiro Kokubo; Isao Ohta (IEICE Trans. Electron., 2008)

Wide Band Metallic Waveguide with Asymmetric In-Line Dielectric Rods. - Yoshihiro Kokubo; Tadashi Kawai (IEICE Trans. Electron., 2008)

Rectangular TE30 to TE10 Mode Converter. - Yoshihiro Kokubo (IEICE Trans. Electron., 2009)

Fabrication of Wide Band Metallic Bend Waveguide with Asymmetric In-Line Dielectric Rods. - Yoshihiro Kokubo; Tadashi Kawai (IEICE Trans. Electron., 2009)

Frequency-Dependent Rectangular TE30-to-TE10 Mode Converter. - Yoshihiro Kokubo (IEICE Trans. Electron., 2011)

Relationship between Good Grades and Brain Waves. - Yoshihiro Kokubo; Yoshihiko Shoji (IIAI-AAI, 2017)

Validity of the Visual Chart Form Grade Report. - Yoshihiko Shoji; Yoshihiro Kokubo (IIAI-AAI, 2018)