Wireless Measurement Module

Developed a new wireless measurement module for voltage, temperature, and heat flux. Its compact, wireless design enabled long-duration measurements, multi-point setups, and measurements on rotating machinery.

Responsibilities

• Designed prototype circuit boards
• Performed board-level testing
• Presenter at an in-house exhibition for industry partners

Achievements

• Added new functions such as heat flux measurement, multi-channel measurement, and high-temperature resistance (up to 105 °C)
• Achieved the same measurement duration as the previous model through power-saving design, despite added functionality
• Generated business leads through exhibition participation

PoC for an AI‑Based Tapping Inspection System on Historic Roof Tiles

As part of the large-scale restoration of the Shitenno-ji Temple Rokujido Hall, conducted tapping measurements on roof tiles and tested an AI‑based tapping inspection system for tile assessment, in collaboration with Obayashi Corporation and JUST Co., Ltd.

Responsibilities

• Planned and managed tapping measurement experiments
• Preprocessed and analyzed tapping data

Achievements

• Contributed to the digital transformation (DX) of heritage architecture designated as National Treasures and Important Cultural Properties
• Built a dataset of tapping data for historical roof tiles

Research on Embedded AI

Investigated AI models and feasible processing methods for deployment on microcontrollers to be integrated into new products.

Responsibilities

• Designed AI models and converted them for embedded implementation
• Researched algorithms capable of running with limited resources

Achievements

• Conducted an internal technical presentation to share research findings
• Published a technical report on reservoir computing

Development of an AI‑Based Tapping Inspection System for Exterior Tiles

Advanced the project from PoC to the development stage. Created an iPhone demo app for tile delamination estimation to enable easier on-site inspections. Conducted validation experiments for algorithm evaluation and presented results at academic conferences and exhibitions in collaboration with Tokyo City University.

Responsibilities

• Developed an iPhone demo app for tile delamination estimation using Swift
• Planned, executed, and analyzed joint experiments
• Authored and delivered a paper at the 2024 Architectural Institute of Japan Annual Meeting
• Served as a technical presenter at various exhibitions

Achievements

• Developed the company’s first iPhone app and established the development environment
• Received the company’s Challenge Award for contributions to this initiative
• Exhibited at Maintenance & Resilience TOKYO 2024 and JAPAN BUILD TOKYO

USB Type-C Microphone

Developed a calibrated USB Type-C microphone enabling high-precision measurements on smartphones with ease.

Responsibilities

• Designed analog filters
• Measured and evaluated acoustic characteristics

Achievements

• Designed filters to cancel the frequency response of the sensor, achieving a flat response across the audible range
• Built a Python–LTspice tool to design optimal filters using in-stock components
• Conducted acoustic measurements in an anechoic chamber to ensure performance as a measurement instrument

PoC for an AI‑Based Tapping Inspection System for Exterior Tiles

Conducted a proof of concept for an AI system that estimates tile delamination based on tapping sound analysis. Activities included experiments from sound measurement to algorithm development, as well as academic publications and patent filings, in collaboration with JUST Co., Ltd.

Responsibilities

• Planned, executed, and analyzed experiments
• Developed tile delamination estimation algorithms
• Created a demo application for tile delamination estimation using PyQt

Achievements

• Achieved 99% accuracy in delamination estimation during the PoC
• Filed and later obtained a patent for tapping inspection devices, methods, and programs
• Developed a demo app enabling simple on-site measurement and estimation
• Presented the initiative at the internal technical conference and received the Best Presentation Award

Human Resource Development

Introduced the company’s initiatives and transferred technical knowledge to employees and students.

Responsibilities

• Served as an instructor for AI training sessions for new employees
• Taught a one-day internship program for university students
• Led internal technical seminars

Achievements

• New employees who completed the training were assigned to my department
• Two internship participants accepted offers

New Employee Training Program

Acquired fundamental professional skills and gained practical experience by rotating through multiple departments.

Achievements

• Shared development-training outcomes with partner companies
• Found a bug during software training and submitted a merge request with a fix
• Received an above-average rating in the first half-year review

Master’s Research
“Effects of visual stimuli on the sound images spatially split by interaural differences”

Clarified the effects of visual stimuli presented via a head-mounted display on the perceptual segregation of sound images in headphone listening, focusing on auditory cues such as interaural time difference, interaural level difference, and spectral cues. Presented findings at the Acoustical Society of Japan and related conferences.