Makoto Kanda

Title: Makoto Kanda: Inventor in High-Toughness Stainless Steel and Hydropower Technology.

Introduction

Makoto Kanda is an inventor associated with Toukai, Japan, and Hitachi, Ltd. His listed patent work includes materials engineering and equipment for high-head hydropower generation. The supplied information identifies 2 patents.

Latest Patents

Kanda’s listed patents address high-toughness 13Cr5Ni stainless steel and its use, including in fluid machinery, as well as an ultra-high-head pump-turbine power-generating plant.

The pump-turbine invention describes a runner driven by water supplied through a high-head conduit, with a rotary electric machine turning alongside it. The specified plant operates at a head of 400–600 meters and uses a runner at least five meters in diameter. The patent description sets mechanical-property requirements for the runner, including strength, ductility, impact resistance, and fracture toughness.

The stainless-steel invention specifies a 13Cr5Ni alloy composition and limits on its elemental ratios, with the material intended for fluid machinery. The description also covers austenitic stainless steel for weld-padding layers and fluid machinery incorporating the materials.

Career Highlights

The available information connects Kanda’s patent activity with Hitachi, Ltd. and highlights work spanning alloy design and large-scale hydropower equipment. These inventions address material performance and the demands placed on components used in fluid machinery and high-head power-generation systems.

Collaborations

The supplied information names Hiroshi Takayasu and Masao Kawakami as Kanda’s coworkers. It does not specify their roles in the listed patents.

Conclusion

Makoto Kanda’s listed inventions bring together high-toughness stainless-steel materials and pump-turbine technology, reflecting a focus on engineering solutions for demanding fluid machinery and hydropower applications.