A new solution to optimization-satisfaction problems by a penalty method. - Kiyotaka Shimizu; Eitaro Aiyoshi (Autom., 1982)

Necessary and sufficient conditions for the efficient solutions of nondifferentiable multiobjective problems. - Yo Ishizuka; Kiyotaka Shimizu (IEEE Trans. Syst. Man Cybern., 1984)

Constrained optimization in Hilbert space and a generalized dual quasi-Newton algorithm for state-constrained optimal control problems. - Kiyotaka Shimizu; Satoshi Ito (IEEE Trans. Autom. Control., 1994)

An ε-approximation approach for global optimization with an application to neural networks. - Min Lu; Kiyotaka Shimizu (ICNN, 1995)

A global optimization method for the Stackelberg problem with convex functions via problem transformation and concave programming. - Kiyotaka Shimizu; Min Lu (IEEE Trans. Syst. Man Cybern., 1995)

Improved direct gradient descent control of general nonlinear systems. - Kiyotaka Shimizu; K. Otsuka; J. Naiborhu (ECC, 1999)

Design of neural stabilizing controller for nonlinear systems via Lyapunov's direct method. - Kiyotaka Shimizu; Kazuyuki Ito (IJCNN, 1999)

A solution to Hamilton-Jacobi equation by neural networks and optimal state feedback control law of nonlinear systems. - Kiyotaka Shimizu; Keiichi Nakayama (ACC, 2002)

Direct gradient descent control of general nonlinear systems. - Kiyotaka Shimizu; K. Otsuka; T. Yamaguchi (ACC, 2002)

Control of nonholonomic systems via direct gradient descent control -variable constraint control based approach. - Kiyotaka Shimizu; Kenichi Tamura (CCA, 2004)

P·quasi-I·D control for MIMO systems - Stabilization based on high gain output feedback -. - Kiyotaka Shimizu; Kenichi Tamura (ACC, 2008)

Stabilizing control of symmetric affine systems by Direct Gradient Descent Control. - Kenichi Tamura; Kiyotaka Shimizu (ACC, 2008)

P*SPR*D control for affine nonlinear system and robot manipulators -Stability analysis based on K-Y-P property and LaSalle's invariance principle-. - Kiyotaka Shimizu (CDC, 2008)

P⋅SPR⋅D and P⋅SPR⋅D⋅I control for linear multi-variable systems - Stabilization based on high gain output feedback -. - Kiyotaka Shimizu (ACC, 2009)

P⋅SPR⋅D control and P⋅I⋅SPR⋅D control for affine nonlinear systems - Stabilization theory based on passivity -. - Kiyotaka Shimizu (ACC, 2009)

P·SPR·D Control of Passive Nonlinear Systems and Inverted Pendulum. - Kiyotaka Shimizu (CCA, 2010)

P·SPR·D control design via LMI for linear MIMO systems and its extension to adaptive control. - Kiyotaka Shimizu (ECC, 2013)

P·SPR·D+I control of linear MIMO systems with time-delay by application of high gain feedback. - Kiyotaka Shimizu (CCA, 2014)

Dynamic output feedback control and dynamic PID control for linear MIMO systems via LMI. - Kiyotaka Shimizu (CCA, 2016)

Optimization of parameter matrix : Optimal output feedback control and optimal PID control. - Kiyotaka Shimizu (CCTA, 2017)