Vol.11 no.3 2019

Research paper : Development and commercialization of laser inspection system to detect surface aws of machined holes (S. OKADA et al.)−142−Synthesiology - English edition Vol.11 No.3 (2018) “technology transfer research” in the 4th medium-term goal period, to clarify the mission for functioning as an institution of technology transfer to create innovation. The regional centers of AIST set the main research themes considering the characteristics of regional industrial clusters, and conduct R&D at the highest level. They also collaborate with the regional economy and industrial bureaus and public research institutions, understand the demand of the small and medium-sized companies as well as regional core companies, and aim to contribute to regional revitalization by conducting technological transfer through involvement of all of AIST.[10]At AIST Chugoku, “ AIST Chugoku Network Club (San’yu Kai in Japanese)” consisting of small and medium-sized companies, major companies, and public research institutions of five prefectures in the Chugoku region and other stakeholders was set up in 2011 for collaborative activities such as network formation, and a scheme[11] to extract issues of companies in the Chugoku region by actually visiting sites Fig. 16 History of commercialization through technological development by AIST (blue) and collaboration with Sigma (green)Demand for inspection of inner surfaces of small diameter holesDemand for inspection of glossy inner surfaces of hydraulic master cylindersSeparation technology for reected/diracted lightIndustrial application of semiconductor lasers to measurement and inspection technologiesSurvey of potential demandsLehman ShockOrganization of collaborative research unitRe-organization of AISTDemand for inspection of inner surfaces of cylinder boresDemand for defect inspection of steel platesDemand for mirror curved surface measurementDemand for glossy curved surface measurementTop seller in global niche marketSales of ANALYZER; became top seller in domestic niche marketStart sales of cylinder bore inspection systemStart joint development of cylinder bore inspection systemIntroduction to company’s automobile parts inspectionStandardizationHollow motor employment and technology for downsizing probe diameterHigh-speed rotation technology and automatic judgment algorithmSeparation technology for reected/diracted light in a rotating optical systemMeasurement technology for 2D light intensity distribution by reected scattered/diracted lightSpatial measurement technology with two sets of PSD and four elementsSpeckle noise reduction technologywas established.AIST became estranged from Sigma after the collaborative research unit broke up as the researchers were dispatched to other places. However, in 2011, there was a top meeting between Director-General Nakamura (at the time) of AIST Chugoku and President Shitanaka in which the President requested whether AIST could solve the problem of erroneous or excessive judgment. Nakamura selected a suitable researcher at AIST Kyushu among the researchers of AIST around Japan and the development of a defect inspection system that could tell defects and contamination was started in 2012, and an improved laser defect inspection system was developed and realized with new ideas. With further collaboration with AIST Kyushu, we are working enthusiastically on the development of a next-generation inspection system that is also capable of quality control, and it is expected that we shall have a world-dominating product in not-so-distant future through collaboration that crosses regionality.AcknowledgementWe shall take this opportunity to thank all the people who were involved in the R&D and commercialization of this laser inspection system. We do hope this paper will contribute to further promotion of future technological transfer activities. TerminologiesTerm 1.Speckle: Dot pattern that appears when coherent light like a laser beam is scattered by an object. It is often the cause of reduced precision in image measurement and is extremely difcult to remove. It is also called speckle noise.References[1]Chugoku Industrial Innovation Center: Monzukuri kigyoseisan genba ni okeru kensa no jidoka sokushin kanoseichosa hokokusho (Report of the survey on the possibility forpromoting automated inspections at the production sites ofmanufacturing industries) (2016) (in Japanese).[2]T. Miyoshi, Y. Takaya, N. Takizawa and R. Fukuzawa:Development of non-contact prole sensor for 3-D free-formsurfaces (3rd Report): Optical ring image 3-D prole sensor,Journal of Japan Society for Precision Engineering, 61 (2),258–262 (1995) (in Japanese).[3]S. Okada, M. Imade, H. Miyauchi, T. Miyoshi, T. Sumimoto,and H. Yamamoto: Noncontact 3D shape inspection basedon optical ring imaging system, Proceedings of SPIE, 2909,58–65 (1997).[4]S. Okada, M. Imade and H. Miyauchi: Kyomen buttai nohyomen-keijo to hosen vector no doji keisoku system nokaihatsu (Development of the simultaneous measurementsystem for normal vector and surface form of mirror-surface

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