(1) The possibility to regenerate city centers by the conversion of buildings, Sep 2004, Nikkan Kensetsu-Tsusinn Shinnbunnsya
Among the hundreds of thousands of buildings that presently exist in Japan, many are vacant or not being used for their intended purposes, especially in city centers and around train stations. In term of frame structure, non-residential buildings are more meticulously constructed and have a taller floor height and greater live load capacity than residential buildings. The research intends to discover ways using conversion techniques and technology to create an environment that will make it possible to transform vacant and unutilized buildings into high quality residences.

(2) The regeneration of city centers by the conversion of buildings, Oct. 2002, Nikkan Kensetsu-Tsusinn Shinnbunnsya
The conversion of buildings has been practiced effectively in Europe and North America, but in Japan, it is still uncharted territory. Some reasons for this include differences in municipal management systems, legal systems, technical systems, and industrial structure. It is important to take a holistic approach to the matter.

(3) Refurbishment and Renovation of Large Housing Estates The Open Building Solution, A Report from a Study Group in Tokyo, Nov. 2002 (2004 in English and German), Marumo-Publishing Co.Ltd.
There are the aging housing estates in Japan, with estimated 6 million residents. The "scrap and build" scheme of the rapid growth era cannot be applied any longer. It would even endanger the communities in the housing estates, which need to be stabilized. This book contains the result of the surveys on the preceding renewal and renovation projects in the European countries and proposals about possible methodology that can be applied to the projects in Japan.

(4) Building in a Sustainable Society -Open Building-, April 1987, Nikkan Kensetsu-Tsusinn Shinnbunnsya
Open Building is an approach to the design of buildings with roots in the way ordinary built environment grows, regenerates and achieves wholeness. Buildings - and the neighborhoods they occupy - are not static artifacts even during the most stable times, and during times of social and technical upheaval are need adjustment in some measure to remain attractive, safe and useful. An open building approach also recognizes that designing and constructing buildings involves many people, who make distribution of responsibility a normal characteristic of the culture of building.

(5) The development and control of city architecture, March 2004, The Architectural Institute of Japan
Through the process of urbanization, large cities in Japan, in particular Tokyo, have seen a reduction in green spaces and the loss of public spaces. We have to realize that our present-day city has lost what we should have inherited and reproduced. 90 papers propose the ideal state of urban space and city architecture by observing the historical transformation of the local orders in space. The papers suggest that the hidden orders, like natural geographical features and site allocation patterns help us to figure out the prototype for city architecture.

(6) Conversion of existing building stocks, Sep. 2002, Building and Equipment Life Cycle Association
The method to regenerate cities in sustainable society is mentioned by indicating the examples of conversions in the UK. According to the officials in charge of city planning and strategy, the capacity studies on the population and office floor demand have contributed to facilitate conversions from offices into flats. From the British experiences, we can tell the importance to establish a master plan for the future, not simply refurbishing empty and useless offices into housing.

(7) The relationship between the "listening" and "looking" in an auditorium, Sep. 1998, The Architectural Institute of Japan
The concert hall in Chiba city and auditorium in Aomori city are used to explain how the stage and the audiences are inter-connected in performance. The concert hall in Chiba applied curtains around the stage to adjust the reverberation time according to the performance. The underground vibration isolation wall and Box-in-Box sound reduction structure was used to accomplish the required level for calmness.

(8) Thoughts on the design of concert halls, April 2002, Thoughts on the design of concert halls

The auditorium and concert hall can contribute to activate the city by inducing many people regularly. The location of them must be considered from the view point of city planning and city strategy. In case of concert hall located in the suburb of local town, it is inconvenient for the elderly people to come back home after the performance. It will bring many effects to place an auditorium in the center of city, including after show dinner and café to chat over glass of wine.