• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.67-68
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• 2010

• The Inventors News
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• no.17
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• pp.2-2
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• 2003

특허수수료체계, 쉽고 간단해진다 - 심심풀이 껌, 기능성 식품 대표주자로 우뚝! - 미래산업, 핸들러 기술 특허분쟁 확산 - 일본인 기술고문 `특허도둑`으로 구속되다 - 특허 획득 가능성 빨리 알 수 있다

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.11a
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• pp.765-766
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• 2010

• Journal of the Korean Institute of Gas
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• v.17 no.3
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• pp.14-19
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• 2013

This paper presents an experimental study on the safety of a valve for a special gas cylinder. The test valves that were randomly dismantled from the special gas cylinder were experimented on the gas leakage and operation safeties. The crack, wear and deformation of the valve body, screw thread, safety disk, vent hole, stem and handle components that may affect to the gas leakage safety of a used valve were not found in this experimental study. A painted handle of a valve was partly stripped from the coated surface, and the surface of PT screw of a used valve body was rusted. But, these paint and rust problems do not affected to the gas leakage safety of used valves. And there was no gas leakage in the dismantled valve, and the permanent deformation and partial scars of a valve stem and O-rings were observed on the rubbing surfaces. Thus, the valve seat and O-rings are recommended to be replaced for a gas leakage safety of a dismantled valve. And it is necessary to repair and inspect handle fastening forces for a safe opening and closing operations of a valve.

• The Journal of Korean Academy of Prosthodontics
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• v.51 no.4
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• pp.300-306
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• 2013

Purpose: This study was to evaluate the accuracy of how to use the Mechanical Torque-Limiting Devices. Materials and methods: Three different implant manufacturers (Dentium, Osstem, Shinhung) were prepared for each two implant torque controllers. Divided into two groups depending on the method used for removal torque was measured. Repeated measures of ANOVA test (${\alpha}=.05$) was used as statistics to evaluate the effect of repeated loading number on the removal torque. Independent t-test was used to evaluate the difference in removal torque of two groups. Results: The removal torque significantly decreased as the number of loading repetition increased (P<.05). There was significant difference between two groups. Conclusion: Loosen the handle part of the implant torque controllers spring resilience to recover one group compared to the group that did not, showed a little more closed to the reference value.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.11a
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• pp.557-558
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• 2008

• The Science & Technology
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• v.30 no.1 s.332
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• pp.88-89
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• 1997

반도체 검사장비를 제조하는 전문 벤처기업 (주)미래산업은 창업 15년만에 '테스트 핸들러'라는 장비를 개발, 돈방석에 앉았다. 공직생활 18년을 끝내고 중소기업현장에 뛰어들었다가 퇴직금 사기당하고, 18억원 들인 '완전자동웨이퍼 검사기' 개발마저 실패하는 등의 역경을 딛고 새로운 기술개발로 벤처기업의 신화를 창조했다.

• The Science & Technology
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• v.28 no.5 s.312
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• pp.75-79
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• 1995

21세기의 고속도로에는 불과4m도 안되는 간격을 두고 수십대의 승용차들이 시속120km의 고속으로 씽씽 달려도 충돌사고가 없다. 운전자들은 핸들만 잡고 브레이크나 엑셀러레이터는 컴퓨터에게 맡긴다. 그래서 종래보다 2배가 넘는 교통량을 안전하게 다룰 수 있게 된다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.11a
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• pp.969-970
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• 2010

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2005.05a
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• pp.344-344
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• 2005