| 1/15 | 1/16 | CEMS International Symposium on Supermolecular Chemistry and Functional Materials 2026 (CEMSupra 2026) | The University of Tokyo |
| 1/20 | 1/24 | International Symposium on Atomic Level Characterizations for New Materials and Devices in Winter 2026 (ALC-W '26) | Shin Furano Prince Hotel |
| 1/30 | Materials Innovation Strategy Symposium 2026 (MatISS 2026) | Tokyo Big Sight |
| 3/17 | 3/18 | The 13th Tokyo Battery Summit | Bellesalle Onarimon Tower |
| 3/19 | 3/24 | International Conference on Advanced Functional Materials and Devices (AFMD-2026) | SRMIST |
| 4/14 | 4/18 | 2026 International Conference on Electronics Packaging and Hybrid Bonding Symposium
(ICEP-HBS2026) | International Conference Center Hiroshima |
| 4/22 | 4/24 | OPTICS & PHOTONICS International Exhibition (OPIE'26) | Pacifico YOKOHAMA |
| 5/24 | 5/28 | Compound Semiconductor Week (CSW2026) | KUMAMOTO-JO HALL |
| 5/25 | 5/28 | Magnetics and Optics Research International Symposium 2026 (MORIS2026) | Dejima Messe Nagasaki |
| 6/3 | 6/5 | 15th International Conference on Optics-photonics Design and Fabrication (ODF'26) | Toyama International Conference Center |
| 6/5 | 4th Three Corners Power Electronics Extended Collaboration Workshop | Dejima Messe Nagasaki |
| 6/14 | 6/18 | 2026 IEEE/JSAP Symposium on VLSI Technology & Circuits | Hilton Hawaiian Village |
| 6/18 | 6/19 | The 25th Scientific International Symposium on SIMS and Related Techniques Based on Ion-Solid Interactions (SISS-25) | Seikei University |
| 7/5 | 7/10 | 32nd International Laser Radar Conference (ILRC32) | International Conference Center Hiroshima |
| 7/5 | 7/10 | 20th International Conference on Nuclear Microprobe Technology and Applications (ICNMTA2026) | Tohoku University |
| 7/7 | 7/10 | The 33rd International Workshop on Active-Matrix Flatpanel Displays and Devices
—TFTTechnologies and FPD Materials— (AM-FPD'26) | Ryukoku Unversity |
| 8/16 | 8/21 | International Conference on the Physics of Semiconductors (ICPS) 2026 | Keio Plaza Hotel
Tokyo |
| 9/6 | 9/10 | The 18th International Meeting on Boron Chemistry (IMEBoron-18) | Institute of Science Tokyo |
| 9/14 | 9/17 | International Conference on Solid State Devices and Materials 2026 (SSDM2026) | DEJIMA MESSE NAGASAKI |
| 9/16 | 9/21 | 11th International Conference on Optical, Optoelectronic and Photonic Materials and Applications (ICOOPMA2026) | Hamamatsu Act City |
| 9/22 | 9/26 | The 21st International Conference on Luminescence | Kyoto University |
| 9/27 | 9/30 | The 31st Microoptics Conference (MOC2026) | Hotel Le Plaza Brussels |
| 9/27 | 10/2 | International Conference on Silicon Carbide and Related Materials 2026 (ICSCRM2026) | Pacifico YOKOHAMA |
| 10/25 | 10/28 | International Symposium on Imaging, Sensing, and Optical Memory 2026 (ISOM'26) | ACT CITY HAMAMATSU |
| 11/1 | 11/6 | OKINAWA COLLOIDS 2026 | Bankoku Shinryokan |
