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Dive into the research topics where Yoshihito Isokawa is active.

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Featured researches published by Yoshihito Isokawa.


ieee international conference on renewable energy research and applications | 2012

Fine groove milling of microchannel dies Relationship between tool run-out and groove accuracy

Kenichi Iwatsuka; Yukio Maeda; Yoshihito Isokawa; Kazuya Kato; Hideaki Tanaka; Takanori Yazawa

Recently, the use of microchannel chips in micro total analysis systems, which can provide savings of natural resources and energy, has attracted attention in the medical field. Generally, the photolithography technology employed in semiconductor manufacturing is used to manufacture microchannel chip dies. However, it involves several processes such as mask fabrication and the application of a photoresist to a substrate, as well as expensive clean room facilities. In light of this, methods to form a fine groove using a micro-endmill are examined. The effects of the tool run-out of a few micrometers on micro-endmilling, as well as on the groove accuracy of a microgroove, are examined.


ieee international conference on renewable energy research and applications | 2012

Grinding of microgrooves in cemented carbide dies Influence of grinding conditions on groove shape accuracy

Yoshihito Isokawa; Yukio Maeda; Kenichi Iwatsuka; Kazuya Kato; Hideki Tanaka; Takanori Yazawa

Recently, owing to the savings of resource and energy, the use of microchannel chips in micro total analysis systems has attracted attention in the medical field. Generally, microchannel chips are composed of plastic or glass. Glass is stronger than plastic in terms of heat and chemical erosion resistance. However, currently, dies for manufacturing glass microchannel chips are not viable because they are composed of cemented carbide. Therefore, in this study, for manufacturing cemented carbide microchannel chip dies, methods for forming a fine groove by grinding using an electrodeposited diamond wheel are examined. The relationships among grinding condition, surface roughness of the groove bottom face, and deviations in groove shape and depth are clarified by the results.


Advanced Materials Research | 2012

Study on Fine Groove Milling of Microchannel Dies – Tool Bending in Milling of Micro-Grooves

Kenichi Iwatsuka; Yoshihito Isokawa; Yukio Maeda; Hideaki Tanaka; Takanori Yazawa; Shinya Suzuki

Microchannel chips for use in micro total analysis systems have recently been attracting attention in the medical field. The photolithography technology employed in semiconductor manufacturing is generally used to manufacture microchannel chip dies. However, this technology involves several processes such as mask fabrication and application of a photoresist to a substrate as well as expensive clean room facilities. In light of this, this study examines ways to form a fine groove by using a micro-end mill. The relationship between the cutting conditions and the bending of a micro-end mill were experimentally examined. In addition, we calculated the tilt angle of the tool used in micro-groove milling on the basis of specific cutting force and tool stiffness.


The Proceedings of the Materials and processing conference | 2012

904 Study on fine groove milling of a micro-channel die : Tool wear on ultrasonic cavitation assisted milling with micro-endmill

Kenichi Iwatsuka; Yukio Maeda; Yoshihito Isokawa; Takanori Yazawa


The Proceedings of the Materials and processing conference | 2012

901 Grinding of micro-grooves in cemented carbide dies : Influence of machining condition on grinding characteristic

Yoshihito Isokawa; Yukio Maeda; Kenichi Iwastuka; Takanori Yazawa; Rie Nakamoto


The Proceedings of Mechanical Engineering Congress, Japan | 2012

S133011 Grinding of micro-grooves in cemented carbide dies : Relationship between grain size of diamond wheel and micro-grooves accuracy

Yoshihito Isokawa; Yukio Maeda; Kenichi Iwastuka; Takanori Yazawa; Rie Nakamoto


The Proceedings of Mechanical Engineering Congress, Japan | 2012

S134035 Study on fine groove milling of microchannel dies : Relationship between run out of a tool and groove accuracy

Kenichi Iwatsuka; Yukio Maeda; Yoshihito Isokawa; Takanori Yazawa


The Proceedings of Conference of Hokuriku-Shinetsu Branch | 2012

1011 Study on micro groove grinding of cemented carbide die

Yukio Maeda; Yoshihito Isokawa; Kenichi Iwatsuka; Takanori Yazawa; Syouhei Iida


The Proceedings of Conference of Hokuriku-Shinetsu Branch | 2012

1013 Study on fine groove milling of a micro-channel die : Bending of tool on micro-groove milling

Yukio Maeda; Kenichi Iwatsuka; Yoshihito Isokawa; Takanori Yazawa; Shinya Suzuki; Yuichi Kimura


Proceedings of JSPE Semestrial Meeting | 2012

超硬合金金型の微細溝研削加工に関する研究:第3報 研削条件が溝形状精度におよぼす影響

Yoshihito Isokawa; Yukio Maeda; Kenichi Iwatsuka; Takanori Yazawa; Rie Nakamoto

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Yukio Maeda

Toyama Prefectural University

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Kenichi Iwatsuka

Toyama Prefectural University

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Kazuya Kato

Toyama Prefectural University

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