Self-organization of globally continuous and locally distributed information representation. - Koji Wada; Koji Kurata; Masato Okada (Neural Networks, 2004)

A study on a multilayer diplexer using LTCC technology for ultra-wideband wireless modules. - Shinpei Oshima; Koji Wada; Ryuji Murata; Yukihiro Shimakata (IEICE Electron. Express, 2011)

A compact multilayer triplexer using an ultra-wideband diplexer and a low-pass filter for 2.4GHz wireless systems. - Shinpei Oshima; Koji Wada; Ryuji Murata; Hiroshi Hara; Hitoshi Ebihara; Yukihiro Shimakata (IEICE Electron. Express, 2012)

Diagnosis Algorithm of Immunity-Based System with Continuous Variable of Mutual Test Results among Sensors. - Koji Wada; Takashi Toriu; Hiromitsu Hama (IIH-MSP, 2013)

A study on a coding method for chipless RFID tags using multimode stepped impedance resonators. - Fuminori Sakai; Mitsuo Makimoto; Koji Wada (IEICE Electron. Express, 2016)

Simulational Approach to Realize a Triplexer Based on Bandpass Filters Using Wideband Resonators. - Kosei Tanii; Koji Wada (IEICE Trans. Electron., 2016)

Near-Field Chipless RFID Tag System Using Inductive Coupling Between a Multimode Resonator and Detection Probes. - Fuminori Sakai; Mitsuo Makimoto; Koji Wada (IEICE Trans. Commun., 2019)

Bandpass filter with flat passband and transmission zeros using parallel-connected resistor loaded hairpin-shaped resonators. - Tomohiro Tsukushi; Satoshi Ono; Koji Wada (IEICE Electron. Express, 2020)

Near-Field Credit Card-Sized Chipless RFID Tags Using Higher-Order Mode Resonance Frequencies of Transmission Line Resonators. - Fuminori Sakai; Mitsuo Makimoto; Koji Wada (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2020)

Realization of Rectangular Frequency Characteristics by the Effects of a Low-Noise Amplifier and Flat Passband Bandpass Filter. - Tomohiro Tsukushi; Satoshi Ono; Koji Wada (IEICE Trans. Electron., 2021)

A Multi-Layer SIW Resonator Loaded with Asymmetric E-Shaped Slot-Lines for a Miniaturized Tri-Band BPF with Low Radiation Loss. - Weiyu Zhou; Satoshi Ono; Koji Wada (IEICE Trans. Electron., 2022)

A New SIDGS-Based Tunable BPF Design Method with Controllable Bandwidth. - Weiyu Zhou; Koji Wada (IEICE Trans. Electron., 2023)

Blow-up of solutions for discrete semilinear wave equation with the scale-invariant damping. - Koji Wada; Kyouhei Wakasa (CoRR, 2025)

Cluster Analysis for Globally Coupled Map using Optimal Transport Distance and Complexity of Attractor-ruin. - Koji Wada; Takao Namiki (CoRR, 2025)