There are two important things for the appropriate extensive renovations of condominiums. The first one is that the condominium buyers are interested in condominium management. The second is to build a relationship of trust with a consultant of extensive renovations from usual.

In this study, I drafted a super-long-term repair plan. As a result, I made it clear that: (1)Super-long-term repair plans cannot accurately calculate future payment amount for repair reserve. However, it is possible to predict when there will be a significant shortage of repair reserve fund. (2)A factor that will increase future repair costs is the life environment improvement work that is carried out in conjunction with extensive renovations. (3)For ultra-aged condominiums, it is important to announce in advance that the payment amount for repair reserve will increase by using super-long-term repair plans.

This study verified the influence of maintenance costs on condominium’s purchase price through inverse probability weighting. Further, the results stated that condominium buyers identified that management fee payments are necessary to quality of planned repairs and management program, and hence, the market value of well-maintained condominiums are high. Therefore, the purchase prices of well-maintained condominiums are higher than the poorly maintained condominiums by 9.6 precent.

「大阪府立産業技術総合研究所」において、平成25年11月から平成26年10月の1年間で実施した

空調機ファンへの周波数制御は省エネルギーの観点から一般的に幅広く実施されている。しかし、導入にあたって、既存施設への導入、特に電算センターでのCPU室空調機用へのファン周波数制御は、サーバーへの障害の原因となる高調波電流、放射ノイズ、雑音端子電圧などの問題が切り離せないものとなっており、十分な対策が必要となる。既存電算センターへ導入可能な周波数制御装置の開発について報告を行う。

This thesis provides a discriminant for rebuilding an apartment. By input real estate data for the discriminant, unit owners can obtain an answer that represents the apartment approaches rebuilt apartment samples or unrebuilt samples. The conclusion proves not only an importance of the rate of reduction, generally most important factor, but also high effect by expansion of the site area for the rebuilding.

After the building of the ship taking over the “Kaiwo Maru I” was planned, in Shinminato City (at the time), devoted movement inviting her had been developed since around 1980. In 1990 she was moored at Fushiki-Toyama port temporarily, and “Kaiwomaru Park” was built two years later. In 1994, permanent preservation of her (at Fushiki-Toyama port) was decided. Afterward, events such as full-sail exhibition or maritime educational program have been held. Through these efforts, the “Kaiwo Maru I” increases visitor's knowledge and interest in ocean and ships. She also has contributed to maritime education for the younger generation. We first specify the detail of inviting her that many people made efforts and achievements after her retirement. Then, in order to leave the “Kaiwo Maru I” eternally for the next generation, we propose the significance of her existence and how she can contribute to society that are able to win people's understanding in both hardware based and software based (tangible and intangible) elements.